Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2061197757', 'doi': 'https://doi.org/10.1007/bf02556602', 'title': 'Age changes in the bone mineral of the lumbar spine in normal women', 'display_name': 'Age changes in the bone mineral of the lumbar spine in normal women', 'publication_year': 1986, 'publication_date': '1986-09-01', 'ids': {'openalex': 'https://openalex.org/W2061197757', 'doi': 'https://doi.org/10.1007/bf02556602', 'mag': '2061197757', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/3087597'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/bf02556602', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S197748570', 'display_name': 'Calcified Tissue International', 'issn_l': '0171-967X', 'issn': ['0171-967X', '1432-0827'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], '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/A5109224426', 'display_name': 'Tommy Hansson', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2801112325', 'display_name': 'Sahlgrenska University Hospital', 'ror': 'https://ror.org/04vgqjj36', 'country_code': 'SE', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2801112325']}], 'countries': ['SE'], 'is_corresponding': False, 'raw_author_name': 'Tommy Hansson', 'raw_affiliation_strings': ['Department of Orthopaedic Surgery, Sahlgren Hospital, University of Göteborg, Göteborg, Sweden'], 'affiliations': [{'raw_affiliation_string': 'Department of Orthopaedic Surgery, Sahlgren Hospital, University of Göteborg, Göteborg, Sweden', 'institution_ids': ['https://openalex.org/I2801112325']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5016087928', 'display_name': 'B. Roos', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2801112325', 'display_name': 'Sahlgrenska University Hospital', 'ror': 'https://ror.org/04vgqjj36', 'country_code': 'SE', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2801112325']}], 'countries': ['SE'], 'is_corresponding': False, 'raw_author_name': 'Bengt Roos', 'raw_affiliation_strings': ['Department of Radiation Physics, Sahlgren Hospital, University of Göteborg, Göteborg, Sweden'], 'affiliations': [{'raw_affiliation_string': 'Department of Radiation Physics, Sahlgren Hospital, University of Göteborg, Göteborg, Sweden', 'institution_ids': ['https://openalex.org/I2801112325']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 2790, 'currency': 'EUR', 'value_usd': 3590, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 9.26, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 79, 'citation_normalized_percentile': {'value': 0.823382, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 95, 'max': 96}, 'biblio': {'volume': '38', 'issue': '5', 'first_page': '249', 'last_page': '251'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10071', 'display_name': 'Bone health and osteoporosis research', 'score': 0.9998, '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'}}, 'topics': [{'id': 'https://openalex.org/T10071', 'display_name': 'Bone health and osteoporosis research', 'score': 0.9998, '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/T12209', 'display_name': 'Bone and Joint Diseases', 'score': 0.9918, '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/T12715', 'display_name': 'Pregnancy-related medical research', 'score': 0.9578, 'subfield': {'id': 'https://openalex.org/subfields/2739', 'display_name': 'Public Health, Environmental and Occupational Health'}, '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/bone-mineral-content', 'display_name': 'Bone mineral content', 'score': 0.80518246}], 'concepts': [{'id': 'https://openalex.org/C2992594941', 'wikidata': 'https://www.wikidata.org/wiki/Q2304401', 'display_name': 'Bone mineral content', 'level': 4, 'score': 0.80518246}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.77648294}, {'id': 'https://openalex.org/C68312169', 'wikidata': 'https://www.wikidata.org/wiki/Q216685', 'display_name': 'Orthopedic surgery', 'level': 2, 'score': 0.6187604}, {'id': 'https://openalex.org/C2776886416', 'wikidata': 'https://www.wikidata.org/wiki/Q4941567', 'display_name': 'Bone mineral', 'level': 3, 'score': 0.5944057}, {'id': 'https://openalex.org/C3017433307', 'wikidata': 'https://www.wikidata.org/wiki/Q405478', 'display_name': 'Lumbar spine', 'level': 2, 'score': 0.5703626}, {'id': 'https://openalex.org/C2779835254', 'wikidata': 'https://www.wikidata.org/wiki/Q405478', 'display_name': 'Lumbar vertebrae', 'level': 3, 'score': 0.51487243}, {'id': 'https://openalex.org/C2776541429', 'wikidata': 'https://www.wikidata.org/wiki/Q165328', 'display_name': 'Osteoporosis', 'level': 2, 'score': 0.46253872}, {'id': 'https://openalex.org/C44575665', 'wikidata': 'https://www.wikidata.org/wiki/Q1293405', 'display_name': 'Lumbar', 'level': 2, 'score': 0.4604969}, {'id': 'https://openalex.org/C2778562196', 'wikidata': 'https://www.wikidata.org/wiki/Q177708', 'display_name': 'Menopause', 'level': 2, 'score': 0.4442942}, {'id': 'https://openalex.org/C199343813', 'wikidata': 'https://www.wikidata.org/wiki/Q12128', 'display_name': 'Dentistry', 'level': 1, 'score': 0.43194497}, {'id': 'https://openalex.org/C141071460', 'wikidata': 'https://www.wikidata.org/wiki/Q40821', 'display_name': 'Surgery', 'level': 1, 'score': 0.38048244}, {'id': 'https://openalex.org/C126894567', 'wikidata': 'https://www.wikidata.org/wiki/Q105650', 'display_name': 'Urology', 'level': 1, 'score': 0.34869713}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.25625777}], 'mesh': [{'descriptor_ui': 'D008159', 'descriptor_name': 'Lumbar Vertebrae', 'qualifier_ui': 'Q000254', 'qualifier_name': 'growth & development', 'is_major_topic': True}, {'descriptor_ui': 'D008903', 'descriptor_name': 'Minerals', 'qualifier_ui': 'Q000032', 'qualifier_name': 'analysis', 'is_major_topic': True}, {'descriptor_ui': 'D000328', 'descriptor_name': 'Adult', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000368', 'descriptor_name': 'Aged', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000375', 'descriptor_name': 'Aging', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000576', 'descriptor_name': 'Americium', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002588', 'descriptor_name': 'Cesium Radioisotopes', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005260', 'descriptor_name': 'Female', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006801', 'descriptor_name': 'Humans', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008159', 'descriptor_name': 'Lumbar Vertebrae', 'qualifier_ui': 'Q000000981', 'qualifier_name': 'diagnostic imaging', 'is_major_topic': False}, {'descriptor_ui': 'D008159', 'descriptor_name': 'Lumbar Vertebrae', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008875', 'descriptor_name': 'Middle Aged', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008903', 'descriptor_name': 'Minerals', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D011877', 'descriptor_name': 'Radionuclide Imaging', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D013057', 'descriptor_name': 'Spectrum Analysis', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/bf02556602', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S197748570', 'display_name': 'Calcified Tissue International', 'issn_l': '0171-967X', 'issn': ['0171-967X', '1432-0827'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/3087597', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'score': 0.53, 'id': 'https://metadata.un.org/sdg/3', 'display_name': 'Good health and well-being'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 15, 'referenced_works': ['https://openalex.org/W1883632207', 'https://openalex.org/W1965116818', 'https://openalex.org/W1998849892', 'https://openalex.org/W2019911654', 'https://openalex.org/W2021708660', 'https://openalex.org/W2039133043', 'https://openalex.org/W2039799588', 'https://openalex.org/W2050557100', 'https://openalex.org/W2074162207', 'https://openalex.org/W2075555024', 'https://openalex.org/W2077150151', 'https://openalex.org/W2122495689', 'https://openalex.org/W2122745505', 'https://openalex.org/W2411678535', 'https://openalex.org/W4294307685'], 'related_works': ['https://openalex.org/W29324516', 'https://openalex.org/W2789423685', 'https://openalex.org/W2508004663', 'https://openalex.org/W2367091571', 'https://openalex.org/W2364848102', 'https://openalex.org/W2349705009', 'https://openalex.org/W2337931566', 'https://openalex.org/W2151632657', 'https://openalex.org/W2075434093', 'https://openalex.org/W2019203960'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2061197757', 'counts_by_year': [{'year': 2023, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 2}, {'year': 2015, 'cited_by_count': 1}], 'updated_date': '2024-12-08T22:44:56.930476', 'created_date': '2016-06-24'}