Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2334762532', 'doi': 'https://doi.org/10.1213/00000539-198702001-00077', 'title': 'DOES AN EPIDURAL TEST DOSE PREVENT COMPLICATIONS OF EPIDURAL CATHETER INSERTION', 'display_name': 'DOES AN EPIDURAL TEST DOSE PREVENT COMPLICATIONS OF EPIDURAL CATHETER INSERTION', 'publication_year': 1987, 'publication_date': '1987-02-01', 'ids': {'openalex': 'https://openalex.org/W2334762532', 'doi': 'https://doi.org/10.1213/00000539-198702001-00077', 'mag': '2334762532'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1213/00000539-198702001-00077', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S104698359', 'display_name': 'Anesthesia & Analgesia', 'issn_l': '0003-2999', 'issn': ['0003-2999', '1526-7598'], '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/A5082751032', 'display_name': 'Stephen H. Halpern', 'orcid': 'https://orcid.org/0000-0002-7480-5122'}, 'institutions': [{'id': 'https://openalex.org/I2801816099', 'display_name': "Women's College Hospital", 'ror': 'https://ror.org/03cw63y62', 'country_code': 'CA', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2801816099']}, {'id': 'https://openalex.org/I185261750', 'display_name': 'University of Toronto', 'ror': 'https://ror.org/03dbr7087', 'country_code': 'CA', 'type': 'education', 'lineage': ['https://openalex.org/I185261750']}], 'countries': ['CA'], 'is_corresponding': False, 'raw_author_name': 'S Halpern', 'raw_affiliation_strings': ["Department of Anaesthesia, Women's College Hospital, University of Toronto, Toronto, Canada"], 'affiliations': [{'raw_affiliation_string': "Department of Anaesthesia, Women's College Hospital, University of Toronto, Toronto, Canada", 'institution_ids': ['https://openalex.org/I2801816099', 'https://openalex.org/I185261750']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5075073135', 'display_name': 'A. Onayemi', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2801816099', 'display_name': "Women's College Hospital", 'ror': 'https://ror.org/03cw63y62', 'country_code': 'CA', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2801816099']}, {'id': 'https://openalex.org/I185261750', 'display_name': 'University of Toronto', 'ror': 'https://ror.org/03dbr7087', 'country_code': 'CA', 'type': 'education', 'lineage': ['https://openalex.org/I185261750']}], 'countries': ['CA'], 'is_corresponding': False, 'raw_author_name': 'A Onayemi', 'raw_affiliation_strings': ["Department of Anaesthesia, Women's College Hospital, University of Toronto, Toronto, Canada"], 'affiliations': [{'raw_affiliation_string': "Department of Anaesthesia, Women's College Hospital, University of Toronto, Toronto, Canada", 'institution_ids': ['https://openalex.org/I2801816099', 'https://openalex.org/I185261750']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5073280706', 'display_name': 'J. Swartz', 'orcid': 'https://orcid.org/0000-0001-6617-5514'}, 'institutions': [{'id': 'https://openalex.org/I2801816099', 'display_name': "Women's College Hospital", 'ror': 'https://ror.org/03cw63y62', 'country_code': 'CA', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2801816099']}, {'id': 'https://openalex.org/I185261750', 'display_name': 'University of Toronto', 'ror': 'https://ror.org/03dbr7087', 'country_code': 'CA', 'type': 'education', 'lineage': ['https://openalex.org/I185261750']}], 'countries': ['CA'], 'is_corresponding': False, 'raw_author_name': 'J Swartz', 'raw_affiliation_strings': ["Department of Anaesthesia, Women's College Hospital, University of Toronto, Toronto, Canada"], 'affiliations': [{'raw_affiliation_string': "Department of Anaesthesia, Women's College Hospital, University of Toronto, Toronto, Canada", 'institution_ids': ['https://openalex.org/I2801816099', 'https://openalex.org/I185261750']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5054100079', 'display_name': 'Ola P. Rosaeg', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2801816099', 'display_name': "Women's College Hospital", 'ror': 'https://ror.org/03cw63y62', 'country_code': 'CA', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2801816099']}, {'id': 'https://openalex.org/I185261750', 'display_name': 'University of Toronto', 'ror': 'https://ror.org/03dbr7087', 'country_code': 'CA', 'type': 'education', 'lineage': ['https://openalex.org/I185261750']}], 'countries': ['CA'], 'is_corresponding': False, 'raw_author_name': 'O Rosaeg', 'raw_affiliation_strings': ["Department of Anaesthesia, Women's College Hospital, University of Toronto, Toronto, Canada"], 'affiliations': [{'raw_affiliation_string': "Department of Anaesthesia, Women's College Hospital, University of Toronto, Toronto, Canada", 'institution_ids': ['https://openalex.org/I2801816099', 'https://openalex.org/I185261750']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.627, 'has_fulltext': False, 'cited_by_count': 4, 'citation_normalized_percentile': {'value': 0.635871, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 69, 'max': 72}, 'biblio': {'volume': '66', 'issue': 'Supplement', 'first_page': 'S77', 'last_page': 'S77'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11669', 'display_name': 'Endoscopic Skull Base Surgery Techniques', 'score': 0.7185, 'subfield': {'id': 'https://openalex.org/subfields/2746', 'display_name': 'Surgery'}, '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/T11669', 'display_name': 'Endoscopic Skull Base Surgery Techniques', 'score': 0.7185, 'subfield': {'id': 'https://openalex.org/subfields/2746', 'display_name': 'Surgery'}, '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/T11381', 'display_name': 'Diagnosis and Treatment of Spinal Infections', 'score': 0.6826, 'subfield': {'id': 'https://openalex.org/subfields/2746', 'display_name': 'Surgery'}, '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/T12183', 'display_name': 'Diagnosis and Management of Fetal and Neonatal Tumors', 'score': 0.6423, 'subfield': {'id': 'https://openalex.org/subfields/2746', 'display_name': 'Surgery'}, '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/meta-analysis', 'display_name': 'Meta-Analysis', 'score': 0.466317}], 'concepts': [{'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.9680327}, {'id': 'https://openalex.org/C42219234', 'wikidata': 'https://www.wikidata.org/wiki/Q131130', 'display_name': 'Anesthesia', 'level': 1, 'score': 0.44840977}, {'id': 'https://openalex.org/C2781267111', 'wikidata': 'https://www.wikidata.org/wiki/Q652297', 'display_name': 'Catheter', 'level': 2, 'score': 0.41393608}, {'id': 'https://openalex.org/C141071460', 'wikidata': 'https://www.wikidata.org/wiki/Q40821', 'display_name': 'Surgery', 'level': 1, 'score': 0.30408728}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1213/00000539-198702001-00077', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S104698359', 'display_name': 'Anesthesia & Analgesia', 'issn_l': '0003-2999', 'issn': ['0003-2999', '1526-7598'], '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': [{'score': 0.42, 'display_name': 'Good health and well-being', 'id': 'https://metadata.un.org/sdg/3'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W4389568370', 'https://openalex.org/W3108674512', 'https://openalex.org/W3032375762', 'https://openalex.org/W3031052312', 'https://openalex.org/W2748952813', 'https://openalex.org/W2586801360', 'https://openalex.org/W2080531066', 'https://openalex.org/W1995515455', 'https://openalex.org/W1506200166', 'https://openalex.org/W1489783725'], 'abstract_inverted_index': {'Halpern,': [0], 'S': [1], 'M.D.,': [2, 6, 10], 'F.R.C.P.(C);': [3, 7, 11], 'Onayemi,': [4], 'A': [5], 'Swartz,': [8], 'J': [9], 'Rosaeg,': [12], 'O': [13], 'M.B.,': [14], 'F.R.C.P.(C)': [15], 'Author': [16], 'Information': [17]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2334762532', 'counts_by_year': [{'year': 2014, 'cited_by_count': 1}], 'updated_date': '2024-09-14T16:46:13.795529', 'created_date': '2016-06-24'}