Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2057477845', 'doi': 'https://doi.org/10.1016/s1388-2457(02)00389-9', 'title': 'Sleep architecture, slow wave activity and sleep spindles in mild sleep disordered breathing', 'display_name': 'Sleep architecture, slow wave activity and sleep spindles in mild sleep disordered breathing', 'publication_year': 2003, 'publication_date': '2003-05-01', 'ids': {'openalex': 'https://openalex.org/W2057477845', 'doi': 'https://doi.org/10.1016/s1388-2457(02)00389-9', 'mag': '2057477845', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/12738432'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s1388-2457(02)00389-9', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S38337076', 'display_name': 'Clinical Neurophysiology', 'issn_l': '1388-2457', 'issn': ['1388-2457', '1872-8952'], '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/A5108344827', 'display_name': 'Basile Ondzé', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210112060', 'display_name': 'Hôpital Gui de Chauliac', 'ror': 'https://ror.org/02w35z347', 'country_code': 'FR', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210112060']}], 'countries': ['FR'], 'is_corresponding': False, 'raw_author_name': 'B Ondze', 'raw_affiliation_strings': ["Service de Neurologie, Unité des troubles du sommeil et de l'éveil, Hôpital Gui de Chauliac B34295 Montpellier, Cedex 5, France"], 'affiliations': [{'raw_affiliation_string': "Service de Neurologie, Unité des troubles du sommeil et de l'éveil, Hôpital Gui de Chauliac B34295 Montpellier, Cedex 5, France", 'institution_ids': ['https://openalex.org/I4210112060']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5045671562', 'display_name': 'Fabrice Espa', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I154526488', 'display_name': 'Inserm', 'ror': 'https://ror.org/02vjkv261', 'country_code': 'FR', 'type': 'government', 'lineage': ['https://openalex.org/I154526488']}, {'id': 'https://openalex.org/I4210112060', 'display_name': 'Hôpital Gui de Chauliac', 'ror': 'https://ror.org/02w35z347', 'country_code': 'FR', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210112060']}], 'countries': ['FR'], 'is_corresponding': False, 'raw_author_name': 'F Espa', 'raw_affiliation_strings': ['INSERM EMI 9930 Hôpital La Colombière 34293 Montpellier, Cedex 5, France', "Service de Neurologie, Unité des troubles du sommeil et de l'éveil, Hôpital Gui de Chauliac B34295 Montpellier, Cedex 5, France"], 'affiliations': [{'raw_affiliation_string': 'INSERM EMI 9930 Hôpital La Colombière 34293 Montpellier, Cedex 5, France', 'institution_ids': ['https://openalex.org/I154526488']}, {'raw_affiliation_string': "Service de Neurologie, Unité des troubles du sommeil et de l'éveil, Hôpital Gui de Chauliac B34295 Montpellier, Cedex 5, France", 'institution_ids': ['https://openalex.org/I4210112060']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5088488166', 'display_name': 'Yves Dauvilliers', 'orcid': 'https://orcid.org/0000-0003-0683-6506'}, 'institutions': [{'id': 'https://openalex.org/I4210112060', 'display_name': 'Hôpital Gui de Chauliac', 'ror': 'https://ror.org/02w35z347', 'country_code': 'FR', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210112060']}, {'id': 'https://openalex.org/I154526488', 'display_name': 'Inserm', 'ror': 'https://ror.org/02vjkv261', 'country_code': 'FR', 'type': 'government', 'lineage': ['https://openalex.org/I154526488']}], 'countries': ['FR'], 'is_corresponding': False, 'raw_author_name': 'Y Dauvilliers', 'raw_affiliation_strings': ['INSERM EMI 9930 Hôpital La Colombière 34293 Montpellier, Cedex 5, France', "Service de Neurologie, Unité des troubles du sommeil et de l'éveil, Hôpital Gui de Chauliac B34295 Montpellier, Cedex 5, France"], 'affiliations': [{'raw_affiliation_string': "Service de Neurologie, Unité des troubles du sommeil et de l'éveil, Hôpital Gui de Chauliac B34295 Montpellier, Cedex 5, France", 'institution_ids': ['https://openalex.org/I4210112060']}, {'raw_affiliation_string': 'INSERM EMI 9930 Hôpital La Colombière 34293 Montpellier, Cedex 5, France', 'institution_ids': ['https://openalex.org/I154526488']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5113658825', 'display_name': 'Michel Billiard', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210112060', 'display_name': 'Hôpital Gui de Chauliac', 'ror': 'https://ror.org/02w35z347', 'country_code': 'FR', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210112060']}], 'countries': ['FR'], 'is_corresponding': False, 'raw_author_name': 'M Billiard', 'raw_affiliation_strings': ["Service de Neurologie, Unité des troubles du sommeil et de l'éveil, Hôpital Gui de Chauliac B34295 Montpellier, Cedex 5, France"], 'affiliations': [{'raw_affiliation_string': "Service de Neurologie, Unité des troubles du sommeil et de l'éveil, Hôpital Gui de Chauliac B34295 Montpellier, Cedex 5, France", 'institution_ids': ['https://openalex.org/I4210112060']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5105774281', 'display_name': 'A Besset', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210112060', 'display_name': 'Hôpital Gui de Chauliac', 'ror': 'https://ror.org/02w35z347', 'country_code': 'FR', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210112060']}, {'id': 'https://openalex.org/I154526488', 'display_name': 'Inserm', 'ror': 'https://ror.org/02vjkv261', 'country_code': 'FR', 'type': 'government', 'lineage': ['https://openalex.org/I154526488']}], 'countries': ['FR'], 'is_corresponding': True, 'raw_author_name': 'A Besset', 'raw_affiliation_strings': ['INSERM EMI 9930 Hôpital La Colombière 34293 Montpellier, Cedex 5, France', "Service de Neurologie, Unité des troubles du sommeil et de l'éveil, Hôpital Gui de Chauliac B34295 Montpellier, Cedex 5, France"], 'affiliations': [{'raw_affiliation_string': "Service de Neurologie, Unité des troubles du sommeil et de l'éveil, Hôpital Gui de Chauliac B34295 Montpellier, Cedex 5, France", 'institution_ids': ['https://openalex.org/I4210112060']}, {'raw_affiliation_string': 'INSERM EMI 9930 Hôpital La Colombière 34293 Montpellier, Cedex 5, France', 'institution_ids': ['https://openalex.org/I154526488']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': ['https://openalex.org/A5105774281'], 'corresponding_institution_ids': ['https://openalex.org/I4210112060', 'https://openalex.org/I154526488'], 'apc_list': {'value': 3590, 'currency': 'USD', 'value_usd': 3590, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 0.671, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 63, 'citation_normalized_percentile': {'value': 0.915784, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 93, 'max': 94}, 'biblio': {'volume': '114', 'issue': '5', 'first_page': '867', 'last_page': '874'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10234', 'display_name': 'Obstructive Sleep Apnea Research', 'score': 0.9999, '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'}}, 'topics': [{'id': 'https://openalex.org/T10234', 'display_name': 'Obstructive Sleep Apnea Research', 'score': 0.9999, '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'}}, {'id': 'https://openalex.org/T10985', 'display_name': 'Sleep and Wakefulness Research', 'score': 0.9984, 'subfield': {'id': 'https://openalex.org/subfields/2805', 'display_name': 'Cognitive Neuroscience'}, 'field': {'id': 'https://openalex.org/fields/28', 'display_name': 'Neuroscience'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T10316', 'display_name': 'Sleep and related disorders', 'score': 0.9958, 'subfield': {'id': 'https://openalex.org/subfields/3205', 'display_name': 'Experimental and Cognitive Psychology'}, 'field': {'id': 'https://openalex.org/fields/32', 'display_name': 'Psychology'}, 'domain': {'id': 'https://openalex.org/domains/2', 'display_name': 'Social Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/sleep-spindle', 'display_name': 'Sleep spindle', 'score': 0.79378194}, {'id': 'https://openalex.org/keywords/k-complex', 'display_name': 'K-complex', 'score': 0.6582787}, {'id': 'https://openalex.org/keywords/sleep', 'display_name': 'Sleep', 'score': 0.6561222}, {'id': 'https://openalex.org/keywords/respiratory-disturbance-index', 'display_name': 'Respiratory disturbance index', 'score': 0.5938269}, {'id': 'https://openalex.org/keywords/sleep-stages', 'display_name': 'Sleep Stages', 'score': 0.58446807}, {'id': 'https://openalex.org/keywords/sleep-and-breathing', 'display_name': 'Sleep and breathing', 'score': 0.49854088}], 'concepts': [{'id': 'https://openalex.org/C20566671', 'wikidata': 'https://www.wikidata.org/wiki/Q1752878', 'display_name': 'Non-rapid eye movement sleep', 'level': 3, 'score': 0.8306926}, {'id': 'https://openalex.org/C143647101', 'wikidata': 'https://www.wikidata.org/wiki/Q2738302', 'display_name': 'Sleep spindle', 'level': 4, 'score': 0.79378194}, {'id': 'https://openalex.org/C112144039', 'wikidata': 'https://www.wikidata.org/wiki/Q4994651', 'display_name': 'K-complex', 'level': 4, 'score': 0.6582787}, {'id': 'https://openalex.org/C110539466', 'wikidata': 'https://www.wikidata.org/wiki/Q3964845', 'display_name': 'Slow-wave sleep', 'level': 3, 'score': 0.6575384}, {'id': 'https://openalex.org/C2775841894', 'wikidata': 'https://www.wikidata.org/wiki/Q4683692', 'display_name': 'Sleep (system call)', 'level': 2, 'score': 0.6561222}, {'id': 'https://openalex.org/C2781442344', 'wikidata': 'https://www.wikidata.org/wiki/Q17125864', 'display_name': 'Respiratory disturbance index', 'level': 4, 'score': 0.5938269}, {'id': 'https://openalex.org/C2910364982', 'wikidata': 'https://www.wikidata.org/wiki/Q35831', 'display_name': 'Sleep Stages', 'level': 4, 'score': 0.58446807}, {'id': 'https://openalex.org/C522805319', 'wikidata': 'https://www.wikidata.org/wiki/Q179965', 'display_name': 'Electroencephalography', 'level': 2, 'score': 0.54690313}, {'id': 'https://openalex.org/C548259974', 'wikidata': 'https://www.wikidata.org/wiki/Q569965', 'display_name': 'Audiology', 'level': 1, 'score': 0.50577164}, {'id': 'https://openalex.org/C2778205975', 'wikidata': 'https://www.wikidata.org/wiki/Q1754874', 'display_name': 'Polysomnography', 'level': 3, 'score': 0.50566244}, {'id': 'https://openalex.org/C99526266', 'wikidata': 'https://www.wikidata.org/wiki/Q16255186', 'display_name': 'Sleep and breathing', 'level': 3, 'score': 0.49854088}, {'id': 'https://openalex.org/C42219234', 'wikidata': 'https://www.wikidata.org/wiki/Q131130', 'display_name': 'Anesthesia', 'level': 1, 'score': 0.47150984}, {'id': 'https://openalex.org/C15744967', 'wikidata': 'https://www.wikidata.org/wiki/Q9418', 'display_name': 'Psychology', 'level': 0, 'score': 0.44521505}, {'id': 'https://openalex.org/C1513209611', 'wikidata': 'https://www.wikidata.org/wiki/Q177190', 'display_name': 'Sleep disorder', 'level': 3, 'score': 0.43869644}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.37358385}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.3728943}, {'id': 'https://openalex.org/C39300077', 'wikidata': 'https://www.wikidata.org/wiki/Q9530', 'display_name': 'Breathing', 'level': 2, 'score': 0.29889232}, {'id': 'https://openalex.org/C169760540', 'wikidata': 'https://www.wikidata.org/wiki/Q207011', 'display_name': 'Neuroscience', 'level': 1, 'score': 0.15175423}, {'id': 'https://openalex.org/C169900460', 'wikidata': 'https://www.wikidata.org/wiki/Q2200417', 'display_name': 'Cognition', 'level': 2, 'score': 0.070353776}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C111919701', 'wikidata': 'https://www.wikidata.org/wiki/Q9135', 'display_name': 'Operating system', 'level': 1, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D012890', 'descriptor_name': 'Sleep', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D012891', 'descriptor_name': 'Sleep Apnea Syndromes', 'qualifier_ui': 'Q000503', 'qualifier_name': 'physiopathology', 'is_major_topic': True}, {'descriptor_ui': 'D000293', 'descriptor_name': 'Adolescent', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000328', 'descriptor_name': 'Adult', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000704', 'descriptor_name': 'Analysis of Variance', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004569', 'descriptor_name': 'Electroencephalography', 'qualifier_ui': 'Q000379', 'qualifier_name': 'methods', 'is_major_topic': False}, {'descriptor_ui': 'D004569', 'descriptor_name': 'Electroencephalography', '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': 'D012890', 'descriptor_name': 'Sleep', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012891', 'descriptor_name': 'Sleep Apnea Syndromes', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012894', 'descriptor_name': 'Sleep Stages', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012894', 'descriptor_name': 'Sleep Stages', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s1388-2457(02)00389-9', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S38337076', 'display_name': 'Clinical Neurophysiology', 'issn_l': '1388-2457', 'issn': ['1388-2457', '1872-8952'], '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/12738432', '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': [{'score': 0.58, 'id': 'https://metadata.un.org/sdg/3', 'display_name': 'Good health and well-being'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 25, 'referenced_works': ['https://openalex.org/W1491105838', 'https://openalex.org/W1503425915', 'https://openalex.org/W1803119734', 'https://openalex.org/W1976394430', 'https://openalex.org/W1991712672', 'https://openalex.org/W2007261661', 'https://openalex.org/W2011295831', 'https://openalex.org/W2012230608', 'https://openalex.org/W2017433266', 'https://openalex.org/W2021918466', 'https://openalex.org/W2023414805', 'https://openalex.org/W2027297182', 'https://openalex.org/W2053194133', 'https://openalex.org/W2083019750', 'https://openalex.org/W2092035523', 'https://openalex.org/W2096352061', 'https://openalex.org/W2104611038', 'https://openalex.org/W2106180524', 'https://openalex.org/W2110715275', 'https://openalex.org/W2115576097', 'https://openalex.org/W2157288005', 'https://openalex.org/W2264784497', 'https://openalex.org/W2268972136', 'https://openalex.org/W2414175470', 'https://openalex.org/W3022302886'], 'related_works': ['https://openalex.org/W4205377703', 'https://openalex.org/W3150033561', 'https://openalex.org/W3008318836', 'https://openalex.org/W2410036221', 'https://openalex.org/W2147509109', 'https://openalex.org/W2093417348', 'https://openalex.org/W2057477845', 'https://openalex.org/W2030409995', 'https://openalex.org/W2002071394', 'https://openalex.org/W1972852256'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2057477845', 'counts_by_year': [{'year': 2024, 'cited_by_count': 6}, {'year': 2023, 'cited_by_count': 4}, {'year': 2022, 'cited_by_count': 6}, {'year': 2021, 'cited_by_count': 5}, {'year': 2020, 'cited_by_count': 4}, {'year': 2019, 'cited_by_count': 4}, {'year': 2018, 'cited_by_count': 3}, {'year': 2017, 'cited_by_count': 3}, {'year': 2016, 'cited_by_count': 3}, {'year': 2015, 'cited_by_count': 4}, {'year': 2014, 'cited_by_count': 4}, {'year': 2013, 'cited_by_count': 2}, {'year': 2012, 'cited_by_count': 1}], 'updated_date': '2024-12-16T17:49:34.186904', 'created_date': '2016-06-24'}