Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W3174977979', 'doi': 'https://doi.org/10.5946/ce.2021.158', 'title': 'Endoscopic Biliary Drainage for Hilar Obstruction: Further Evidence But Still A Long Way To Go', 'display_name': 'Endoscopic Biliary Drainage for Hilar Obstruction: Further Evidence But Still A Long Way To Go', 'publication_year': 2021, 'publication_date': '2021-06-23', 'ids': {'openalex': 'https://openalex.org/W3174977979', 'doi': 'https://doi.org/10.5946/ce.2021.158', 'mag': '3174977979', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/34157798', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/8505177'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.5946/ce.2021.158', 'pdf_url': 'https://www.e-ce.org/upload/pdf/ce-2021-158.pdf', 'source': {'id': 'https://openalex.org/S2755109226', 'display_name': 'Clinical Endoscopy', 'issn_l': '2234-2400', 'issn': ['2234-2400', '2234-2443'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4324113237', 'host_organization_name': 'Korean Society of Gastrointestinal Endoscopy', 'host_organization_lineage': ['https://openalex.org/P4324113237'], 'host_organization_lineage_names': ['Korean Society of Gastrointestinal Endoscopy'], 'type': 'journal'}, 'license': 'cc-by-nc', 'license_id': 'https://openalex.org/licenses/cc-by-nc', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'letter', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'doaj', 'pubmed'], 'open_access': {'is_oa': True, 'oa_status': 'gold', 'oa_url': 'https://www.e-ce.org/upload/pdf/ce-2021-158.pdf', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5060049548', 'display_name': 'Yousuke Nakai', 'orcid': 'https://orcid.org/0000-0001-7411-1385'}, 'institutions': [{'id': 'https://openalex.org/I4210109338', 'display_name': 'University of Tokyo Hospital', 'ror': 'https://ror.org/022cvpj02', 'country_code': 'JP', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210109338']}], 'countries': ['JP'], 'is_corresponding': True, 'raw_author_name': 'Yousuke Nakai', 'raw_affiliation_strings': ['Department of Endoscopy and Endoscopic Surgery, The University of Tokyo Hospital, Tokyo, Japan'], 'affiliations': [{'raw_affiliation_string': 'Department of Endoscopy and Endoscopic Surgery, The University of Tokyo Hospital, Tokyo, Japan', 'institution_ids': ['https://openalex.org/I4210109338']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': ['https://openalex.org/A5060049548'], 'corresponding_institution_ids': ['https://openalex.org/I4210109338'], 'apc_list': {'value': 242, 'currency': 'USD', 'value_usd': 242, 'provenance': 'doaj'}, 'apc_paid': {'value': 242, 'currency': 'USD', 'value_usd': 242, 'provenance': 'doaj'}, 'fwci': None, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 1, 'citation_normalized_percentile': {'value': 0.473554, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 58, 'max': 68}, 'biblio': {'volume': '54', 'issue': '5', 'first_page': '629', 'last_page': '630'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10518', 'display_name': 'Diagnosis and Management of Biliary Tract Disorders', 'score': 0.9994, '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/T10518', 'display_name': 'Diagnosis and Management of Biliary Tract Disorders', 'score': 0.9994, '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/T13697', 'display_name': 'Complications of Gallstone Disease', 'score': 0.9987, '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/T11658', 'display_name': 'Esophageal Intervention Techniques', 'score': 0.998, '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/biliary-drainage', 'display_name': 'Biliary Drainage', 'score': 0.598118}, {'id': 'https://openalex.org/keywords/endoscopic-stenting', 'display_name': 'Endoscopic Stenting', 'score': 0.591686}], 'concepts': [{'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.9681395}, {'id': 'https://openalex.org/C3018651493', 'wikidata': 'https://www.wikidata.org/wiki/Q851111', 'display_name': 'Biliary drainage', 'level': 2, 'score': 0.77391243}, {'id': 'https://openalex.org/C2780706714', 'wikidata': 'https://www.wikidata.org/wiki/Q5376416', 'display_name': 'Endoscopic stenting', 'level': 3, 'score': 0.60948396}, {'id': 'https://openalex.org/C61434518', 'wikidata': 'https://www.wikidata.org/wiki/Q932510', 'display_name': 'General surgery', 'level': 1, 'score': 0.50417674}, {'id': 'https://openalex.org/C67592535', 'wikidata': 'https://www.wikidata.org/wiki/Q7481320', 'display_name': 'Drainage', 'level': 2, 'score': 0.45227557}, {'id': 'https://openalex.org/C141071460', 'wikidata': 'https://www.wikidata.org/wiki/Q40821', 'display_name': 'Surgery', 'level': 1, 'score': 0.35993147}, {'id': 'https://openalex.org/C2778583881', 'wikidata': 'https://www.wikidata.org/wiki/Q1325542', 'display_name': 'Stent', 'level': 2, 'score': 0.31265032}, {'id': 'https://openalex.org/C18903297', 'wikidata': 'https://www.wikidata.org/wiki/Q7150', 'display_name': 'Ecology', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.0}], 'mesh': [], 'locations_count': 4, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.5946/ce.2021.158', 'pdf_url': 'https://www.e-ce.org/upload/pdf/ce-2021-158.pdf', 'source': {'id': 'https://openalex.org/S2755109226', 'display_name': 'Clinical Endoscopy', 'issn_l': '2234-2400', 'issn': ['2234-2400', '2234-2443'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4324113237', 'host_organization_name': 'Korean Society of Gastrointestinal Endoscopy', 'host_organization_lineage': ['https://openalex.org/P4324113237'], 'host_organization_lineage_names': ['Korean Society of Gastrointestinal Endoscopy'], 'type': 'journal'}, 'license': 'cc-by-nc', 'license_id': 'https://openalex.org/licenses/cc-by-nc', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://doaj.org/article/488bf96742ea41abada5b7239408cbaa', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306401280', 'display_name': 'DOAJ (DOAJ: Directory of Open Access Journals)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8505177', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764455111', 'display_name': 'PubMed Central', 'issn_l': None, 'issn': None, 'is_oa': True, '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': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/34157798', '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': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.5946/ce.2021.158', 'pdf_url': 'https://www.e-ce.org/upload/pdf/ce-2021-158.pdf', 'source': {'id': 'https://openalex.org/S2755109226', 'display_name': 'Clinical Endoscopy', 'issn_l': '2234-2400', 'issn': ['2234-2400', '2234-2443'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4324113237', 'host_organization_name': 'Korean Society of Gastrointestinal Endoscopy', 'host_organization_lineage': ['https://openalex.org/P4324113237'], 'host_organization_lineage_names': ['Korean Society of Gastrointestinal Endoscopy'], 'type': 'journal'}, 'license': 'cc-by-nc', 'license_id': 'https://openalex.org/licenses/cc-by-nc', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 7, 'referenced_works': ['https://openalex.org/W2509596120', 'https://openalex.org/W2610161843', 'https://openalex.org/W2886135411', 'https://openalex.org/W2903309618', 'https://openalex.org/W2939096015', 'https://openalex.org/W2991749634', 'https://openalex.org/W3165477400'], 'related_works': ['https://openalex.org/W2901498988', 'https://openalex.org/W2444310249', 'https://openalex.org/W2414924665', 'https://openalex.org/W2413066655', 'https://openalex.org/W2403415139', 'https://openalex.org/W2367458303', 'https://openalex.org/W2335695465', 'https://openalex.org/W2325094559', 'https://openalex.org/W2108304080', 'https://openalex.org/W1594836033'], 'abstract_inverted_index': {'See': [0], 'the': [1], 'article': [2], '"Endoscopic': [3], 'Stenting': [4], 'for': [5], 'Malignant': [6], 'Biliary': [7], 'Obstruction:': [8], 'Results': [9], 'of': [10], 'a': [11], 'Nationwide': [12], 'Experience"': [13], 'in': [14], 'Volume': [15], '54': [16], 'on': [17], 'page': [18], '713.': [19]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3174977979', 'counts_by_year': [{'year': 2023, 'cited_by_count': 1}], 'updated_date': '2024-09-17T22:07:34.910772', 'created_date': '2021-07-05'}