Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2067510083', 'doi': 'https://doi.org/10.1016/s0894-7317(14)80163-6', 'title': 'Quadricuspid Aortic Valve and Aortic Regurgitation Diagnosed by Doppler Echocardiography: Report of Two Cases and Review of the Literature', 'display_name': 'Quadricuspid Aortic Valve and Aortic Regurgitation Diagnosed by Doppler Echocardiography: Report of Two Cases and Review of the Literature', 'publication_year': 1991, 'publication_date': '1991-01-01', 'ids': {'openalex': 'https://openalex.org/W2067510083', 'doi': 'https://doi.org/10.1016/s0894-7317(14)80163-6', 'mag': '2067510083', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/2003940'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s0894-7317(14)80163-6', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S185321339', 'display_name': 'Journal of the American Society of Echocardiography', 'issn_l': '0894-7317', 'issn': ['0894-7317', '1097-6795'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'review', '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/A5032754062', 'display_name': 'Márcia M. Barbosa', 'orcid': 'https://orcid.org/0000-0001-9663-2966'}, 'institutions': [{'id': 'https://openalex.org/I4210108569', 'display_name': 'Hospital Socor', 'ror': 'https://ror.org/016e4fb86', 'country_code': 'BR', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210108569']}], 'countries': ['BR'], 'is_corresponding': False, 'raw_author_name': 'Marcia M. Barbosa', 'raw_affiliation_strings': ['Socor Hospital, Belo Horizonte MG, Brazil.'], 'affiliations': [{'raw_affiliation_string': 'Socor Hospital, Belo Horizonte MG, Brazil.', 'institution_ids': ['https://openalex.org/I4210108569']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5038481297', 'display_name': 'Mauro S. Motta', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210108569', 'display_name': 'Hospital Socor', 'ror': 'https://ror.org/016e4fb86', 'country_code': 'BR', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210108569']}], 'countries': ['BR'], 'is_corresponding': False, 'raw_author_name': 'Mauro S. Motta', 'raw_affiliation_strings': ['Socor Hospital, Belo Horizonte, Brazil'], 'affiliations': [{'raw_affiliation_string': 'Socor Hospital, Belo Horizonte, Brazil', 'institution_ids': ['https://openalex.org/I4210108569']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 3200, 'currency': 'USD', 'value_usd': 3200, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 21, 'citation_normalized_percentile': {'value': 0.49424, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 85, 'max': 86}, 'biblio': {'volume': '4', 'issue': '1', 'first_page': '69', 'last_page': '74'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10618', 'display_name': 'Aortic Disease and Treatment Approaches', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2740', 'display_name': 'Pulmonary and Respiratory 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/T10618', 'display_name': 'Aortic Disease and Treatment Approaches', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2740', 'display_name': 'Pulmonary and Respiratory 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/T10172', 'display_name': 'Cardiac Valve Diseases and Treatments', 'score': 0.9995, 'subfield': {'id': 'https://openalex.org/subfields/2705', 'display_name': 'Cardiology and Cardiovascular 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/T10300', 'display_name': 'Congenital Heart Disease Studies', 'score': 0.9992, 'subfield': {'id': 'https://openalex.org/subfields/2713', 'display_name': 'Epidemiology'}, '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/aortic-valve-insufficiency', 'display_name': 'Aortic Valve Insufficiency', 'score': 0.4111522}], 'concepts': [{'id': 'https://openalex.org/C2780168065', 'wikidata': 'https://www.wikidata.org/wiki/Q1930043', 'display_name': 'Regurgitation (circulation)', 'level': 2, 'score': 0.92808676}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.9204851}, {'id': 'https://openalex.org/C164705383', 'wikidata': 'https://www.wikidata.org/wiki/Q10379', 'display_name': 'Cardiology', 'level': 1, 'score': 0.76662564}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.72564083}, {'id': 'https://openalex.org/C2780346441', 'wikidata': 'https://www.wikidata.org/wiki/Q55609890', 'display_name': 'Doppler echocardiography', 'level': 4, 'score': 0.7065575}, {'id': 'https://openalex.org/C2780714102', 'wikidata': 'https://www.wikidata.org/wiki/Q616071', 'display_name': 'Aortic valve', 'level': 2, 'score': 0.5598123}, {'id': 'https://openalex.org/C142757262', 'wikidata': 'https://www.wikidata.org/wiki/Q76436', 'display_name': 'Doppler effect', 'level': 2, 'score': 0.4501618}, {'id': 'https://openalex.org/C126838900', 'wikidata': 'https://www.wikidata.org/wiki/Q77604', 'display_name': 'Radiology', 'level': 1, 'score': 0.41245112}, {'id': 'https://openalex.org/C2908689187', 'wikidata': 'https://www.wikidata.org/wiki/Q616087', 'display_name': 'Aortic Valve Insufficiency', 'level': 3, 'score': 0.4111522}, {'id': 'https://openalex.org/C84393581', 'wikidata': 'https://www.wikidata.org/wiki/Q82642', 'display_name': 'Blood pressure', 'level': 2, 'score': 0.087097704}, {'id': 'https://openalex.org/C57900726', 'wikidata': 'https://www.wikidata.org/wiki/Q492905', 'display_name': 'Diastole', 'level': 3, 'score': 0.08615142}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C1276947', 'wikidata': 'https://www.wikidata.org/wiki/Q333', 'display_name': 'Astronomy', 'level': 1, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D001021', 'descriptor_name': 'Aortic Valve', 'qualifier_ui': 'Q000002', 'qualifier_name': 'abnormalities', 'is_major_topic': True}, {'descriptor_ui': 'D001022', 'descriptor_name': 'Aortic Valve Insufficiency', 'qualifier_ui': 'Q000000981', 'qualifier_name': 'diagnostic imaging', 'is_major_topic': True}, {'descriptor_ui': 'D015150', 'descriptor_name': 'Echocardiography, Doppler', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D000328', 'descriptor_name': 'Adult', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001021', 'descriptor_name': 'Aortic Valve', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001021', 'descriptor_name': 'Aortic Valve', 'qualifier_ui': 'Q000000981', 'qualifier_name': 'diagnostic imaging', 'is_major_topic': False}, {'descriptor_ui': 'D001022', 'descriptor_name': 'Aortic Valve Insufficiency', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001022', 'descriptor_name': 'Aortic Valve Insufficiency', 'qualifier_ui': 'Q000150', 'qualifier_name': 'complications', 'is_major_topic': False}, {'descriptor_ui': 'D002648', 'descriptor_name': 'Child', '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': 'D008297', 'descriptor_name': 'Male', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s0894-7317(14)80163-6', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S185321339', 'display_name': 'Journal of the American Society of Echocardiography', 'issn_l': '0894-7317', 'issn': ['0894-7317', '1097-6795'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], '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/2003940', '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': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 36, 'referenced_works': ['https://openalex.org/W1967108668', 'https://openalex.org/W1972998079', 'https://openalex.org/W1975837283', 'https://openalex.org/W1990120306', 'https://openalex.org/W2008601494', 'https://openalex.org/W2013287060', 'https://openalex.org/W2021879556', 'https://openalex.org/W2023386449', 'https://openalex.org/W2029704701', 'https://openalex.org/W2029973573', 'https://openalex.org/W2052070165', 'https://openalex.org/W2065321355', 'https://openalex.org/W2067552770', 'https://openalex.org/W2086260291', 'https://openalex.org/W2086308931', 'https://openalex.org/W2088822840', 'https://openalex.org/W2093012344', 'https://openalex.org/W2097571334', 'https://openalex.org/W2099322028', 'https://openalex.org/W2110348312', 'https://openalex.org/W2135359086', 'https://openalex.org/W2139627082', 'https://openalex.org/W2146483378', 'https://openalex.org/W2222549972', 'https://openalex.org/W2408995760', 'https://openalex.org/W2409067028', 'https://openalex.org/W2409451728', 'https://openalex.org/W2409994340', 'https://openalex.org/W2410937320', 'https://openalex.org/W2416549991', 'https://openalex.org/W2416637998', 'https://openalex.org/W2417860059', 'https://openalex.org/W2418383079', 'https://openalex.org/W2419291903', 'https://openalex.org/W2515186220', 'https://openalex.org/W3128080395'], 'related_works': ['https://openalex.org/W2802433391', 'https://openalex.org/W2762864850', 'https://openalex.org/W2442741726', 'https://openalex.org/W2372493871', 'https://openalex.org/W2109982452', 'https://openalex.org/W2096104114', 'https://openalex.org/W2068535819', 'https://openalex.org/W2067510083', 'https://openalex.org/W1985322839', 'https://openalex.org/W1956732469'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2067510083', 'counts_by_year': [{'year': 2016, 'cited_by_count': 1}, {'year': 2015, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 1}], 'updated_date': '2024-12-17T00:18:05.518789', 'created_date': '2016-06-24'}