Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W3041284877', 'doi': None, 'title': 'Classification of chronic pain', 'display_name': 'Classification of chronic pain', 'publication_year': 1994, 'publication_date': '1994-01-01', 'ids': {'openalex': 'https://openalex.org/W3041284877', 'mag': '3041284877'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://ci.nii.ac.jp/naid/10031059998/', 'pdf_url': None, 'source': None, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': [], '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/A5000343712', 'display_name': 'Harold Merskey', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': True, 'raw_author_name': 'H Merskey', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': ['https://openalex.org/A5000343712'], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 10.662, 'has_fulltext': False, 'cited_by_count': 2828, 'citation_normalized_percentile': {'value': 0.999215, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 99, 'max': 100}, 'biblio': {'volume': None, 'issue': None, 'first_page': '41', 'last_page': '43'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11199', 'display_name': 'Challenges in Pain Management and Treatment', 'score': 0.9626, 'subfield': {'id': 'https://openalex.org/subfields/2703', 'display_name': 'Anesthesiology and Pain 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/T11199', 'display_name': 'Challenges in Pain Management and Treatment', 'score': 0.9626, 'subfield': {'id': 'https://openalex.org/subfields/2703', 'display_name': 'Anesthesiology and Pain 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/T10084', 'display_name': 'Global Burden of Chronic Pain', 'score': 0.9472, 'subfield': {'id': 'https://openalex.org/subfields/2736', 'display_name': 'Pharmacology'}, '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/T10196', 'display_name': 'Mechanisms and Management of Neuropathic Pain', 'score': 0.9289, 'subfield': {'id': 'https://openalex.org/subfields/2737', 'display_name': 'Physiology'}, '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/pain-assessment-tools', 'display_name': 'Pain Assessment Tools', 'score': 0.673031}, {'id': 'https://openalex.org/keywords/pain-modulation', 'display_name': 'Pain Modulation', 'score': 0.627944}, {'id': 'https://openalex.org/keywords/chronic-pain', 'display_name': 'Chronic Pain', 'score': 0.59804}, {'id': 'https://openalex.org/keywords/pain-management', 'display_name': 'Pain Management', 'score': 0.594804}, {'id': 'https://openalex.org/keywords/postoperative-pain', 'display_name': 'Postoperative Pain', 'score': 0.554376}], 'concepts': [{'id': 'https://openalex.org/C2781118164', 'wikidata': 'https://www.wikidata.org/wiki/Q1088113', 'display_name': 'Chronic pain', 'level': 2, 'score': 0.47738427}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.42122304}, {'id': 'https://openalex.org/C1862650', 'wikidata': 'https://www.wikidata.org/wiki/Q186005', 'display_name': 'Physical therapy', 'level': 1, 'score': 0.25392246}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://ci.nii.ac.jp/naid/10031059998/', 'pdf_url': None, 'source': None, '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': 0.54}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W87452813', 'https://openalex.org/W3151231921', 'https://openalex.org/W3101974507', 'https://openalex.org/W2396876519', 'https://openalex.org/W2253364553', 'https://openalex.org/W2167613032', 'https://openalex.org/W2164513741', 'https://openalex.org/W2159011576', 'https://openalex.org/W2138407894', 'https://openalex.org/W2133316133', 'https://openalex.org/W2130141996', 'https://openalex.org/W2103637716', 'https://openalex.org/W2099093791', 'https://openalex.org/W2092579251', 'https://openalex.org/W2089633836', 'https://openalex.org/W2084518320', 'https://openalex.org/W2082970080', 'https://openalex.org/W2064698198', 'https://openalex.org/W1992708231', 'https://openalex.org/W1966128258'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3041284877', 'counts_by_year': [{'year': 2024, 'cited_by_count': 17}, {'year': 2023, 'cited_by_count': 25}, {'year': 2022, 'cited_by_count': 55}, {'year': 2021, 'cited_by_count': 81}, {'year': 2020, 'cited_by_count': 99}, {'year': 2019, 'cited_by_count': 93}, {'year': 2018, 'cited_by_count': 102}, {'year': 2017, 'cited_by_count': 87}, {'year': 2016, 'cited_by_count': 103}, {'year': 2015, 'cited_by_count': 138}, {'year': 2014, 'cited_by_count': 181}, {'year': 2013, 'cited_by_count': 176}, {'year': 2012, 'cited_by_count': 156}], 'updated_date': '2024-09-18T22:36:30.141988', 'created_date': '2020-07-16'}