Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2011783973', 'doi': 'https://doi.org/10.1097/00006254-198303000-00017', 'title': 'Acute Effects of Parathyroid Hormone on Vitamin D Metabolism in Patients with the Bone Loss of Aging', 'display_name': 'Acute Effects of Parathyroid Hormone on Vitamin D Metabolism in Patients with the Bone Loss of Aging', 'publication_year': 1983, 'publication_date': '1983-03-01', 'ids': {'openalex': 'https://openalex.org/W2011783973', 'doi': 'https://doi.org/10.1097/00006254-198303000-00017', 'mag': '2011783973'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1097/00006254-198303000-00017', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S115789314', 'display_name': 'Obstetrical & Gynecological Survey', 'issn_l': '0029-7828', 'issn': ['0029-7828', '1533-9866'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315671', 'host_organization_name': 'Lippincott Williams & Wilkins', 'host_organization_lineage': ['https://openalex.org/P4310315671', 'https://openalex.org/P4310318547'], 'host_organization_lineage_names': ['Lippincott Williams & Wilkins', 'Wolters Kluwer'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5054925505', 'display_name': 'Ole Sørensen', 'orcid': 'https://orcid.org/0009-0008-0969-9352'}, 'institutions': [{'id': 'https://openalex.org/I2802709434', 'display_name': 'Rigshospitalet', 'ror': 'https://ror.org/03mchdq19', 'country_code': 'DK', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802567020', 'https://openalex.org/I2802709434', 'https://openalex.org/I4210145385']}, {'id': 'https://openalex.org/I103635307', 'display_name': 'University of California, Riverside', 'ror': 'https://ror.org/03nawhv43', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I103635307']}], 'countries': ['DK', 'US'], 'is_corresponding': False, 'raw_author_name': 'O. HELMER SØRENSEN', 'raw_affiliation_strings': ['Department of Biochemistry, University of California, Riverside, California', 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark', 'institution_ids': ['https://openalex.org/I2802709434']}, {'raw_affiliation_string': 'Department of Biochemistry, University of California, Riverside, California', 'institution_ids': ['https://openalex.org/I103635307']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5059277540', 'display_name': 'B O LUMHOLTZ', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802709434', 'display_name': 'Rigshospitalet', 'ror': 'https://ror.org/03mchdq19', 'country_code': 'DK', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802567020', 'https://openalex.org/I2802709434', 'https://openalex.org/I4210145385']}, {'id': 'https://openalex.org/I103635307', 'display_name': 'University of California, Riverside', 'ror': 'https://ror.org/03nawhv43', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I103635307']}], 'countries': ['DK', 'US'], 'is_corresponding': False, 'raw_author_name': 'B O LUMHOLTZ', 'raw_affiliation_strings': ['Department of Biochemistry, University of California, Riverside, California', 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark', 'institution_ids': ['https://openalex.org/I2802709434']}, {'raw_affiliation_string': 'Department of Biochemistry, University of California, Riverside, California', 'institution_ids': ['https://openalex.org/I103635307']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5019654433', 'display_name': 'B. Lund', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802709434', 'display_name': 'Rigshospitalet', 'ror': 'https://ror.org/03mchdq19', 'country_code': 'DK', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802567020', 'https://openalex.org/I2802709434', 'https://openalex.org/I4210145385']}, {'id': 'https://openalex.org/I103635307', 'display_name': 'University of California, Riverside', 'ror': 'https://ror.org/03nawhv43', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I103635307']}], 'countries': ['DK', 'US'], 'is_corresponding': False, 'raw_author_name': 'BIRGER LUND', 'raw_affiliation_strings': ['Department of Biochemistry, University of California, Riverside, California', 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark', 'institution_ids': ['https://openalex.org/I2802709434']}, {'raw_affiliation_string': 'Department of Biochemistry, University of California, Riverside, California', 'institution_ids': ['https://openalex.org/I103635307']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5019654433', 'display_name': 'B. Lund', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802709434', 'display_name': 'Rigshospitalet', 'ror': 'https://ror.org/03mchdq19', 'country_code': 'DK', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802567020', 'https://openalex.org/I2802709434', 'https://openalex.org/I4210145385']}, {'id': 'https://openalex.org/I103635307', 'display_name': 'University of California, Riverside', 'ror': 'https://ror.org/03nawhv43', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I103635307']}], 'countries': ['DK', 'US'], 'is_corresponding': False, 'raw_author_name': 'BJARNE LUND', 'raw_affiliation_strings': ['Department of Biochemistry, University of California, Riverside, California', 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark', 'institution_ids': ['https://openalex.org/I2802709434']}, {'raw_affiliation_string': 'Department of Biochemistry, University of California, Riverside, California', 'institution_ids': ['https://openalex.org/I103635307']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5063365842', 'display_name': 'INGE L. HJELMSTRAND', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802709434', 'display_name': 'Rigshospitalet', 'ror': 'https://ror.org/03mchdq19', 'country_code': 'DK', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802567020', 'https://openalex.org/I2802709434', 'https://openalex.org/I4210145385']}, {'id': 'https://openalex.org/I103635307', 'display_name': 'University of California, Riverside', 'ror': 'https://ror.org/03nawhv43', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I103635307']}], 'countries': ['DK', 'US'], 'is_corresponding': False, 'raw_author_name': 'INGE L. HJELMSTRAND', 'raw_affiliation_strings': ['Department of Biochemistry, University of California, Riverside, California', 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark', 'institution_ids': ['https://openalex.org/I2802709434']}, {'raw_affiliation_string': 'Department of Biochemistry, University of California, Riverside, California', 'institution_ids': ['https://openalex.org/I103635307']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5074502655', 'display_name': 'Leif Mosekilde', 'orcid': 'https://orcid.org/0000-0002-7607-4677'}, 'institutions': [{'id': 'https://openalex.org/I2802709434', 'display_name': 'Rigshospitalet', 'ror': 'https://ror.org/03mchdq19', 'country_code': 'DK', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802567020', 'https://openalex.org/I2802709434', 'https://openalex.org/I4210145385']}, {'id': 'https://openalex.org/I103635307', 'display_name': 'University of California, Riverside', 'ror': 'https://ror.org/03nawhv43', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I103635307']}], 'countries': ['DK', 'US'], 'is_corresponding': False, 'raw_author_name': 'LEIF MOSEKILDE', 'raw_affiliation_strings': ['Department of Biochemistry, University of California, Riverside, California', 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark', 'institution_ids': ['https://openalex.org/I2802709434']}, {'raw_affiliation_string': 'Department of Biochemistry, University of California, Riverside, California', 'institution_ids': ['https://openalex.org/I103635307']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5088619095', 'display_name': 'F. Melsen', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802709434', 'display_name': 'Rigshospitalet', 'ror': 'https://ror.org/03mchdq19', 'country_code': 'DK', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802567020', 'https://openalex.org/I2802709434', 'https://openalex.org/I4210145385']}, {'id': 'https://openalex.org/I103635307', 'display_name': 'University of California, Riverside', 'ror': 'https://ror.org/03nawhv43', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I103635307']}], 'countries': ['DK', 'US'], 'is_corresponding': False, 'raw_author_name': 'FLEMMING MELSEN', 'raw_affiliation_strings': ['Department of Biochemistry, University of California, Riverside, California', 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark', 'institution_ids': ['https://openalex.org/I2802709434']}, {'raw_affiliation_string': 'Department of Biochemistry, University of California, Riverside, California', 'institution_ids': ['https://openalex.org/I103635307']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5074349069', 'display_name': 'June E. Bishop', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802709434', 'display_name': 'Rigshospitalet', 'ror': 'https://ror.org/03mchdq19', 'country_code': 'DK', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802567020', 'https://openalex.org/I2802709434', 'https://openalex.org/I4210145385']}, {'id': 'https://openalex.org/I103635307', 'display_name': 'University of California, Riverside', 'ror': 'https://ror.org/03nawhv43', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I103635307']}], 'countries': ['DK', 'US'], 'is_corresponding': False, 'raw_author_name': 'JUNE E. BISHOP', 'raw_affiliation_strings': ['Department of Biochemistry, University of California, Riverside, California', 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark', 'institution_ids': ['https://openalex.org/I2802709434']}, {'raw_affiliation_string': 'Department of Biochemistry, University of California, Riverside, California', 'institution_ids': ['https://openalex.org/I103635307']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5034584507', 'display_name': 'Anthony W. Norman', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802709434', 'display_name': 'Rigshospitalet', 'ror': 'https://ror.org/03mchdq19', 'country_code': 'DK', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802567020', 'https://openalex.org/I2802709434', 'https://openalex.org/I4210145385']}, {'id': 'https://openalex.org/I103635307', 'display_name': 'University of California, Riverside', 'ror': 'https://ror.org/03nawhv43', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I103635307']}], 'countries': ['DK', 'US'], 'is_corresponding': False, 'raw_author_name': 'ANTHONY W. NORMAN', 'raw_affiliation_strings': ['Department of Biochemistry, University of California, Riverside, California', 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Department of Medicine, Sundby Hospital, Department of Medicine F, Herlev University Hospital, Department of Rheumatology, Hvidovre University Hospital, Department of Orthopaedic Surgery U, Rigshospitalet Copenhagen University, and Departments of Medicine and Pathology, Arhus County Hospital, Denmark', 'institution_ids': ['https://openalex.org/I2802709434']}, {'raw_affiliation_string': 'Department of Biochemistry, University of California, Riverside, California', 'institution_ids': ['https://openalex.org/I103635307']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 1, 'citation_normalized_percentile': {'value': 0.0, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 54, 'max': 62}, 'biblio': {'volume': '38', 'issue': '3', 'first_page': '165', 'last_page': '167'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10277', 'display_name': 'Vitamin D and Health Outcomes', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2734', 'display_name': 'Pathology and Forensic Medicine'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10277', 'display_name': 'Vitamin D and Health Outcomes', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2734', 'display_name': 'Pathology and Forensic Medicine'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T10071', 'display_name': 'Osteoporosis', 'score': 0.98, 'subfield': {'id': 'https://openalex.org/subfields/2732', 'display_name': 'Orthopedics and Sports Medicine'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T12267', 'display_name': 'Effects of Ketogenic Diet on Health', 'score': 0.9749, 'subfield': {'id': 'https://openalex.org/subfields/2737', 'display_name': 'Physiology'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/parathyroid-hormone', 'display_name': 'Parathyroid Hormone', 'score': 0.574781}, {'id': 'https://openalex.org/keywords/vitamin-d', 'display_name': 'Vitamin D', 'score': 0.570682}, {'id': 'https://openalex.org/keywords/bone-remodeling', 'display_name': 'Bone remodeling', 'score': 0.5551067}, {'id': 'https://openalex.org/keywords/osteopenia', 'display_name': 'Osteopenia', 'score': 0.43458176}], 'concepts': [{'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.921751}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.8189087}, {'id': 'https://openalex.org/C134018914', 'wikidata': 'https://www.wikidata.org/wiki/Q162606', 'display_name': 'Endocrinology', 'level': 1, 'score': 0.77230483}, {'id': 'https://openalex.org/C2781208988', 'wikidata': 'https://www.wikidata.org/wiki/Q202476', 'display_name': 'Parathyroid hormone', 'level': 3, 'score': 0.7172667}, {'id': 'https://openalex.org/C124490489', 'wikidata': 'https://www.wikidata.org/wiki/Q7936963', 'display_name': 'Vitamin D and neurology', 'level': 2, 'score': 0.7132151}, {'id': 'https://openalex.org/C2780439177', 'wikidata': 'https://www.wikidata.org/wiki/Q1442923', 'display_name': 'Malabsorption', 'level': 2, 'score': 0.7065093}, {'id': 'https://openalex.org/C170033053', 'wikidata': 'https://www.wikidata.org/wiki/Q952019', 'display_name': 'Bone remodeling', 'level': 2, 'score': 0.5551067}, {'id': 'https://openalex.org/C519063684', 'wikidata': 'https://www.wikidata.org/wiki/Q706', 'display_name': 'Calcium', 'level': 2, 'score': 0.5279592}, {'id': 'https://openalex.org/C2777477808', 'wikidata': 'https://www.wikidata.org/wiki/Q407595', 'display_name': 'Metabolite', 'level': 2, 'score': 0.5208026}, {'id': 'https://openalex.org/C87975464', 'wikidata': 'https://www.wikidata.org/wiki/Q910704', 'display_name': 'Calcium metabolism', 'level': 3, 'score': 0.48367485}, {'id': 'https://openalex.org/C71315377', 'wikidata': 'https://www.wikidata.org/wiki/Q11364', 'display_name': 'Hormone', 'level': 2, 'score': 0.4480529}, {'id': 'https://openalex.org/C2777083390', 'wikidata': 'https://www.wikidata.org/wiki/Q1367706', 'display_name': 'Osteopenia', 'level': 4, 'score': 0.43458176}, {'id': 'https://openalex.org/C2776541429', 'wikidata': 'https://www.wikidata.org/wiki/Q165328', 'display_name': 'Osteoporosis', 'level': 2, 'score': 0.4194034}, {'id': 'https://openalex.org/C2776940978', 'wikidata': 'https://www.wikidata.org/wiki/Q34956', 'display_name': 'Vitamin', 'level': 2, 'score': 0.41214633}, {'id': 'https://openalex.org/C2776886416', 'wikidata': 'https://www.wikidata.org/wiki/Q4941567', 'display_name': 'Bone mineral', 'level': 3, 'score': 0.11709982}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1097/00006254-198303000-00017', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S115789314', 'display_name': 'Obstetrical & Gynecological Survey', 'issn_l': '0029-7828', 'issn': ['0029-7828', '1533-9866'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315671', 'host_organization_name': 'Lippincott Williams & Wilkins', 'host_organization_lineage': ['https://openalex.org/P4310315671', 'https://openalex.org/P4310318547'], 'host_organization_lineage_names': ['Lippincott Williams & Wilkins', 'Wolters Kluwer'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'display_name': 'Good health and well-being', 'score': 0.46, 'id': 'https://metadata.un.org/sdg/3'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W4280531444', 'https://openalex.org/W41054178', 'https://openalex.org/W3119761766', 'https://openalex.org/W2481402747', 'https://openalex.org/W2472964652', 'https://openalex.org/W2418757186', 'https://openalex.org/W2350619905', 'https://openalex.org/W2262338619', 'https://openalex.org/W2088920851', 'https://openalex.org/W2038068231'], 'abstract_inverted_index': {'Intestinal': [0], 'malabsorption': [1, 17], 'of': [2, 14, 24, 45, 69, 101, 105, 154, 185, 191, 202], 'calcium': [3, 211], 'is': [4], 'probably': [5], 'a': [6, 66, 188], 'contributory': [7], 'factor': [8], 'leading': [9], 'to': [10, 71, 76, 97, 141], 'the': [11, 25, 52, 99, 160, 181, 199, 205], 'bone': [12], 'loss': [13], 'aging.': [15], 'The': [16, 92, 114, 151, 173], 'can': [18], 'be': [19, 74], 'corrected': [20], 'by': [21], 'small': [22], 'doses': [23], 'biologically': [26], 'active': [27], 'vitamin': [28], 'D': [29, 32], 'metabolite,': [30], '1,25-dihydroxy-vitamin': [31], '[1,25-(OH)2D]': [33], 'or': [34, 208], 'its': [35], 'analog,': [36], '1α-hydroxyvitamin': [37], 'D.': [38], 'Most': [39], 'studies': [40], 'have': [41], 'shown': [42], 'reduced': [43, 67, 158], 'levels': [44, 201], 'circulating': [46], '1,25-(OH)2D': [47, 72, 110, 155], 'in': [48, 78, 111, 121, 130, 159, 180, 198, 209], 'osteoporotic': [49], 'patients,': [50, 183], 'but': [51], 'mechanism': [53], 'underlying': [54], 'this': [55], 'reduction': [56], 'has': [57, 62], 'not': [58], 'been': [59, 63], 'established.': [60], 'It': [61], 'suggested': [64], 'that': [65, 80], 'conversion': [68], '25OHD': [70], 'might': [73], 'secondary': [75], 'changes': [77], 'factors': [79], 'normally': [81], 'stimulate': [82], '25OHD-1α-hydroxylase': [83], 'activity,': [84], 'such': [85], 'as': [86], 'parathyroid': [87, 106], 'hormone': [88], 'and': [89, 136, 144, 148], 'serum': [90, 109, 152, 200, 210], 'phosphate.': [91], 'present': [93], 'study': [94], 'was': [95, 128, 177], 'performed': [96, 129], 'evaluate': [98], 'effects': [100], 'an': [102], 'intravenous': [103], 'injection': [104], 'extract': [107], 'on': [108], 'osteopenic': [112, 132, 161], 'patients.': [113], 'results': [115], 'were': [116, 156, 196], 'compared': [117], 'with': [118], 'those': [119], 'obtained': [120], 'age-matched': [122, 149], 'nonosteopenic': [123, 146], 'individuals.': [124], 'A': [125], '4-hour': [126], 'test': [127], 'nine': [131, 145], 'patients': [133, 162], '(eight': [134], 'females': [135], 'one': [137], 'male,': [138], 'ages': [139], '65': [140], '77': [142], 'years)': [143], 'sex-': [147], 'controls.': [150], 'concentrations': [153], 'significantly': [157, 178], '(19': [163], '±': [164, 168], '2.8': [165, 169], 'versus': [166], '34.8': [167], 'pg/ml': [170], '(±': [171], 'SE)).': [172], 'mean': [174], '25-OHD': [175], 'level': [176], 'elevated': [179], 'Osteopenic': [182], 'all': [184], 'whom': [186], 'had': [187], 'regular': [189], 'intake': [190], 'multivitamin': [192], 'tablets.': [193], 'No': [194], 'differences': [195], 'found': [197], '24,25-(OH)2D': [203], 'between': [204], 'two': [206], 'groups': [207], '…': [212]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2011783973', 'counts_by_year': [], 'updated_date': '2024-09-14T07:40:56.436880', 'created_date': '2016-06-24'}