Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2011361035', 'doi': 'https://doi.org/10.1016/s0002-8703(98)70039-0', 'title': 'Extent of ischemic stimulus and plasma β-endorphin levels in silent myocardial ischemia', 'display_name': 'Extent of ischemic stimulus and plasma β-endorphin levels in silent myocardial ischemia', 'publication_year': 1998, 'publication_date': '1998-05-01', 'ids': {'openalex': 'https://openalex.org/W2011361035', 'doi': 'https://doi.org/10.1016/s0002-8703(98)70039-0', 'mag': '2011361035', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/9588410'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s0002-8703(98)70039-0', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S46995015', 'display_name': 'American Heart Journal', 'issn_l': '0002-8703', 'issn': ['0002-8703', '1097-6744'], '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': '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/A5110848968', 'display_name': 'Hiroyuki Hikita', 'orcid': 'https://orcid.org/0000-0001-6362-402X'}, 'institutions': [], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Hiroyuki Hikita', 'raw_affiliation_strings': ['Saitama, Japan'], 'affiliations': [{'raw_affiliation_string': 'Saitama, Japan', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5046553799', 'display_name': 'Hirokuni Etsuda', 'orcid': None}, 'institutions': [], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Hirokuni Etsuda', 'raw_affiliation_strings': ['Saitama, Japan'], 'affiliations': [{'raw_affiliation_string': 'Saitama, Japan', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5023589833', 'display_name': 'Bonpei Takase', 'orcid': 'https://orcid.org/0000-0001-5320-4734'}, 'institutions': [], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Bonpei Takase', 'raw_affiliation_strings': ['Saitama, Japan'], 'affiliations': [{'raw_affiliation_string': 'Saitama, Japan', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5112220569', 'display_name': 'Kimio Satomura', 'orcid': None}, 'institutions': [], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Kimio Satomura', 'raw_affiliation_strings': ['Saitama, Japan'], 'affiliations': [{'raw_affiliation_string': 'Saitama, Japan', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5089244575', 'display_name': 'Akira Kurita', 'orcid': 'https://orcid.org/0000-0003-3389-4058'}, 'institutions': [], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Akira Kurita', 'raw_affiliation_strings': ['Saitama, Japan'], 'affiliations': [{'raw_affiliation_string': 'Saitama, Japan', 'institution_ids': []}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5109281067', 'display_name': 'Haruo Nakamura', 'orcid': None}, 'institutions': [], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Haruo Nakamura', 'raw_affiliation_strings': ['Saitama, Japan'], 'affiliations': [{'raw_affiliation_string': 'Saitama, Japan', 'institution_ids': []}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 0, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 3800, 'currency': 'USD', 'value_usd': 3800, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 2.078, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 13, 'citation_normalized_percentile': {'value': 0.659809, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 80, 'max': 81}, 'biblio': {'volume': '135', 'issue': '5', 'first_page': '813', 'last_page': '818'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10372', 'display_name': 'Cardiac Imaging and Diagnostics', 'score': 0.9997, 'subfield': {'id': 'https://openalex.org/subfields/2741', 'display_name': 'Radiology, Nuclear Medicine and Imaging'}, '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/T10372', 'display_name': 'Cardiac Imaging and Diagnostics', 'score': 0.9997, 'subfield': {'id': 'https://openalex.org/subfields/2741', 'display_name': 'Radiology, Nuclear Medicine and Imaging'}, '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/T10821', 'display_name': 'Cardiovascular Function and Risk Factors', 'score': 0.9987, '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/T10065', 'display_name': 'Atrial Fibrillation Management and Outcomes', 'score': 0.9979, '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'}}], 'keywords': [], 'concepts': [{'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.9589832}, {'id': 'https://openalex.org/C2780326628', 'wikidata': 'https://www.wikidata.org/wiki/Q539795', 'display_name': 'Angioplasty', 'level': 2, 'score': 0.8077428}, {'id': 'https://openalex.org/C541997718', 'wikidata': 'https://www.wikidata.org/wiki/Q188151', 'display_name': 'Ischemia', 'level': 2, 'score': 0.7844231}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.6941221}, {'id': 'https://openalex.org/C164705383', 'wikidata': 'https://www.wikidata.org/wiki/Q10379', 'display_name': 'Cardiology', 'level': 1, 'score': 0.65242743}, {'id': 'https://openalex.org/C139059822', 'wikidata': 'https://www.wikidata.org/wiki/Q183951', 'display_name': 'Balloon', 'level': 2, 'score': 0.46549475}, {'id': 'https://openalex.org/C2778213512', 'wikidata': 'https://www.wikidata.org/wiki/Q844935', 'display_name': 'Coronary artery disease', 'level': 2, 'score': 0.43939683}, {'id': 'https://openalex.org/C42219234', 'wikidata': 'https://www.wikidata.org/wiki/Q131130', 'display_name': 'Anesthesia', 'level': 1, 'score': 0.36386916}], 'mesh': [{'descriptor_ui': 'D015906', 'descriptor_name': 'Angioplasty, Balloon, Coronary', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D017202', 'descriptor_name': 'Myocardial Ischemia', 'qualifier_ui': 'Q000175', 'qualifier_name': 'diagnosis', 'is_major_topic': True}, {'descriptor_ui': 'D001615', 'descriptor_name': 'beta-Endorphin', 'qualifier_ui': 'Q000097', 'qualifier_name': 'blood', 'is_major_topic': True}, {'descriptor_ui': 'D000368', 'descriptor_name': 'Aged', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003327', 'descriptor_name': 'Coronary Disease', 'qualifier_ui': 'Q000097', 'qualifier_name': 'blood', 'is_major_topic': False}, {'descriptor_ui': 'D003327', 'descriptor_name': 'Coronary Disease', 'qualifier_ui': 'Q000628', 'qualifier_name': 'therapy', 'is_major_topic': False}, {'descriptor_ui': 'D003327', 'descriptor_name': 'Coronary Disease', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005080', 'descriptor_name': 'Exercise Test', '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}, {'descriptor_ui': 'D008875', 'descriptor_name': 'Middle Aged', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D017202', 'descriptor_name': 'Myocardial Ischemia', 'qualifier_ui': 'Q000097', 'qualifier_name': 'blood', 'is_major_topic': False}, {'descriptor_ui': 'D017202', 'descriptor_name': 'Myocardial Ischemia', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D011379', 'descriptor_name': 'Prognosis', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001615', 'descriptor_name': 'beta-Endorphin', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s0002-8703(98)70039-0', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S46995015', 'display_name': 'American Heart Journal', 'issn_l': '0002-8703', 'issn': ['0002-8703', '1097-6744'], '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/9588410', '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': [{'id': 'https://metadata.un.org/sdg/3', 'display_name': 'Good health and well-being', 'score': 0.83}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 22, 'referenced_works': ['https://openalex.org/W1579919164', 'https://openalex.org/W1983286342', 'https://openalex.org/W1996227662', 'https://openalex.org/W2002132488', 'https://openalex.org/W2005887471', 'https://openalex.org/W2012027755', 'https://openalex.org/W2014401136', 'https://openalex.org/W2015562789', 'https://openalex.org/W2020004422', 'https://openalex.org/W2020296222', 'https://openalex.org/W2029525416', 'https://openalex.org/W2036622010', 'https://openalex.org/W2038381769', 'https://openalex.org/W2043512062', 'https://openalex.org/W2045712219', 'https://openalex.org/W2060937339', 'https://openalex.org/W2077756813', 'https://openalex.org/W2090422179', 'https://openalex.org/W2093064319', 'https://openalex.org/W2095199614', 'https://openalex.org/W2403684051', 'https://openalex.org/W2413668954'], 'related_works': ['https://openalex.org/W62644229', 'https://openalex.org/W2373611984', 'https://openalex.org/W2276026673', 'https://openalex.org/W2086711084', 'https://openalex.org/W2060202593', 'https://openalex.org/W2051234078', 'https://openalex.org/W2044965543', 'https://openalex.org/W2028797017', 'https://openalex.org/W2008266199', 'https://openalex.org/W1995140171'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2011361035', 'counts_by_year': [{'year': 2017, 'cited_by_count': 1}, {'year': 2013, 'cited_by_count': 2}], 'updated_date': '2024-12-17T14:24:23.266051', 'created_date': '2016-06-24'}