Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1484350802', 'doi': 'https://doi.org/10.1046/j.1365-2869.1999.00166.x', 'title': 'Sleepiness in obstructive sleep apnea syndrome and simple snoring evaluated by the Epworth Sleepiness Scale', 'display_name': 'Sleepiness in obstructive sleep apnea syndrome and simple snoring evaluated by the Epworth Sleepiness Scale', 'publication_year': 1999, 'publication_date': '1999-12-01', 'ids': {'openalex': 'https://openalex.org/W1484350802', 'doi': 'https://doi.org/10.1046/j.1365-2869.1999.00166.x', 'mag': '1484350802', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/10646173'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1046/j.1365-2869.1999.00166.x', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S123151105', 'display_name': 'Journal of Sleep Research', 'issn_l': '0962-1105', 'issn': ['0962-1105', '1365-2869'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320595', 'host_organization_name': 'Wiley', 'host_organization_lineage': ['https://openalex.org/P4310320595'], 'host_organization_lineage_names': ['Wiley'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'letter', '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/A5082788863', 'display_name': 'Raffaele Manni', 'orcid': 'https://orcid.org/0000-0003-1118-7184'}, 'institutions': [{'id': 'https://openalex.org/I4210131308', 'display_name': 'I.R.C.C.S. Oasi Maria SS', 'ror': 'https://ror.org/03cvbjc43', 'country_code': 'IT', 'type': 'facility', 'lineage': ['https://openalex.org/I4210131308']}], 'countries': ['IT'], 'is_corresponding': False, 'raw_author_name': 'Raffaele Manni', 'raw_affiliation_strings': ['Sleep Centre, Institute of Neurology ‘C. Mondimo’, Pavia, Italy'], 'affiliations': [{'raw_affiliation_string': 'Sleep Centre, Institute of Neurology ‘C. Mondimo’, Pavia, Italy', 'institution_ids': ['https://openalex.org/I4210131308']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5087013825', 'display_name': 'Lucia Politini', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210131308', 'display_name': 'I.R.C.C.S. Oasi Maria SS', 'ror': 'https://ror.org/03cvbjc43', 'country_code': 'IT', 'type': 'facility', 'lineage': ['https://openalex.org/I4210131308']}], 'countries': ['IT'], 'is_corresponding': False, 'raw_author_name': 'Lucia Politini', 'raw_affiliation_strings': ['Sleep Centre, Institute of Neurology ‘C. Mondimo’, Pavia, Italy'], 'affiliations': [{'raw_affiliation_string': 'Sleep Centre, Institute of Neurology ‘C. Mondimo’, Pavia, Italy', 'institution_ids': ['https://openalex.org/I4210131308']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5108396655', 'display_name': 'Maria Teresa Ratti', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210131308', 'display_name': 'I.R.C.C.S. Oasi Maria SS', 'ror': 'https://ror.org/03cvbjc43', 'country_code': 'IT', 'type': 'facility', 'lineage': ['https://openalex.org/I4210131308']}], 'countries': ['IT'], 'is_corresponding': False, 'raw_author_name': 'Maria Teresa Ratti', 'raw_affiliation_strings': ['Sleep Centre, Institute of Neurology ‘C. Mondimo’, Pavia, Italy'], 'affiliations': [{'raw_affiliation_string': 'Sleep Centre, Institute of Neurology ‘C. Mondimo’, Pavia, Italy', 'institution_ids': ['https://openalex.org/I4210131308']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5050704249', 'display_name': 'A Tártara', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210131308', 'display_name': 'I.R.C.C.S. Oasi Maria SS', 'ror': 'https://ror.org/03cvbjc43', 'country_code': 'IT', 'type': 'facility', 'lineage': ['https://openalex.org/I4210131308']}], 'countries': ['IT'], 'is_corresponding': False, 'raw_author_name': 'Amelia Tartara', 'raw_affiliation_strings': ['Sleep Centre, Institute of Neurology ‘C. Mondimo’, Pavia, Italy'], 'affiliations': [{'raw_affiliation_string': 'Sleep Centre, Institute of Neurology ‘C. Mondimo’, Pavia, Italy', 'institution_ids': ['https://openalex.org/I4210131308']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 3970, 'currency': 'USD', 'value_usd': 3970, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': None, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 36, 'citation_normalized_percentile': {'value': 0.913876, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 89, 'max': 90}, 'biblio': {'volume': '8', 'issue': '4', 'first_page': '319', 'last_page': '320'}, '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': 0.9997, '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/T11456', 'display_name': 'Neuroscience of respiration and sleep', 'score': 0.9988, 'subfield': {'id': 'https://openalex.org/subfields/2807', 'display_name': 'Endocrine and Autonomic Systems'}, 'field': {'id': 'https://openalex.org/fields/28', 'display_name': 'Neuroscience'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/epworth-sleepiness-scale', 'display_name': 'Epworth Sleepiness Scale', 'score': 0.6212169}, {'id': 'https://openalex.org/keywords/sleep', 'display_name': 'Sleep', 'score': 0.45834753}, {'id': 'https://openalex.org/keywords/sleep-medicine', 'display_name': 'Sleep medicine', 'score': 0.43807986}], 'concepts': [{'id': 'https://openalex.org/C16568411', 'wikidata': 'https://www.wikidata.org/wiki/Q83042', 'display_name': 'Neurology', 'level': 2, 'score': 0.74682045}, {'id': 'https://openalex.org/C2778664715', 'wikidata': 'https://www.wikidata.org/wiki/Q1347756', 'display_name': 'Epworth Sleepiness Scale', 'level': 4, 'score': 0.6212169}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.46402055}, {'id': 'https://openalex.org/C2775841894', 'wikidata': 'https://www.wikidata.org/wiki/Q4683692', 'display_name': 'Sleep (system call)', 'level': 2, 'score': 0.45834753}, {'id': 'https://openalex.org/C188394188', 'wikidata': 'https://www.wikidata.org/wiki/Q744029', 'display_name': 'Sleep medicine', 'level': 4, 'score': 0.43807986}, {'id': 'https://openalex.org/C2777935920', 'wikidata': 'https://www.wikidata.org/wiki/Q213600', 'display_name': 'Sleep apnea', 'level': 2, 'score': 0.42471838}, {'id': 'https://openalex.org/C15744967', 'wikidata': 'https://www.wikidata.org/wiki/Q9418', 'display_name': 'Psychology', 'level': 0, 'score': 0.39410055}, {'id': 'https://openalex.org/C1513209611', 'wikidata': 'https://www.wikidata.org/wiki/Q177190', 'display_name': 'Sleep disorder', 'level': 3, 'score': 0.2246288}, {'id': 'https://openalex.org/C118552586', 'wikidata': 'https://www.wikidata.org/wiki/Q7867', 'display_name': 'Psychiatry', 'level': 1, 'score': 0.22233897}, {'id': 'https://openalex.org/C2778205975', 'wikidata': 'https://www.wikidata.org/wiki/Q1754874', 'display_name': 'Polysomnography', 'level': 3, 'score': 0.21321446}, {'id': 'https://openalex.org/C2781326671', 'wikidata': 'https://www.wikidata.org/wiki/Q754424', 'display_name': 'Apnea', 'level': 2, 'score': 0.20409995}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.18670163}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.063568324}, {'id': 'https://openalex.org/C2781210498', 'wikidata': 'https://www.wikidata.org/wiki/Q1869874', 'display_name': 'Insomnia', 'level': 2, 'score': 0.05579245}, {'id': 'https://openalex.org/C111919701', 'wikidata': 'https://www.wikidata.org/wiki/Q9135', 'display_name': 'Operating system', 'level': 1, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D006970', 'descriptor_name': 'Disorders of Excessive Somnolence', 'qualifier_ui': 'Q000175', 'qualifier_name': 'diagnosis', 'is_major_topic': True}, {'descriptor_ui': 'D020181', 'descriptor_name': 'Sleep Apnea, Obstructive', 'qualifier_ui': 'Q000150', 'qualifier_name': 'complications', 'is_major_topic': True}, {'descriptor_ui': 'D012913', 'descriptor_name': 'Snoring', 'qualifier_ui': 'Q000175', 'qualifier_name': 'diagnosis', 'is_major_topic': True}, {'descriptor_ui': 'D006970', 'descriptor_name': 'Disorders of Excessive Somnolence', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006970', 'descriptor_name': 'Disorders of Excessive Somnolence', 'qualifier_ui': 'Q000209', 'qualifier_name': 'etiology', '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': 'D012680', 'descriptor_name': 'Sensitivity and Specificity', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012720', 'descriptor_name': 'Severity of Illness Index', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D020181', 'descriptor_name': 'Sleep Apnea, Obstructive', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012913', 'descriptor_name': 'Snoring', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012913', 'descriptor_name': 'Snoring', 'qualifier_ui': 'Q000150', 'qualifier_name': 'complications', 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1046/j.1365-2869.1999.00166.x', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S123151105', 'display_name': 'Journal of Sleep Research', 'issn_l': '0962-1105', 'issn': ['0962-1105', '1365-2869'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320595', 'host_organization_name': 'Wiley', 'host_organization_lineage': ['https://openalex.org/P4310320595'], 'host_organization_lineage_names': ['Wiley'], '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/10646173', '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': 0.63, 'id': 'https://metadata.un.org/sdg/13', 'display_name': 'Climate action'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 4, 'referenced_works': ['https://openalex.org/W2017647414', 'https://openalex.org/W2050379247', 'https://openalex.org/W2062489262', 'https://openalex.org/W2410214125'], 'related_works': ['https://openalex.org/W4281700175', 'https://openalex.org/W3213837863', 'https://openalex.org/W3168255409', 'https://openalex.org/W3048556887', 'https://openalex.org/W3018260848', 'https://openalex.org/W2404386390', 'https://openalex.org/W2024944089', 'https://openalex.org/W2015022221', 'https://openalex.org/W2004773852', 'https://openalex.org/W1995520617'], 'abstract_inverted_index': {'Journal': [0], 'of': [1, 31, 49, 69, 87, 106, 124, 144, 162, 187, 231, 241, 254, 265], 'Sleep': [2, 28, 46, 66, 84, 103, 121, 141, 159, 184], 'ResearchVolume': [3], '8,': [4], 'Issue': [5], '4': [6], 'p.': [7], '319-320': [8, 292], 'Sleepiness': [9, 22], 'in': [10], 'obstructive': [11], 'sleep': [12], 'apnea': [13], 'syndrome': [14], 'and': [15, 229, 233, 245, 252, 271], 'simple': [16], 'snoring': [17], 'evaluated': [18], 'by': [19, 40, 58, 78, 96, 115, 133, 153, 171], 'the': [20, 209, 247, 257], 'Epworth': [21], 'Scale': [23], 'Raffaele': [24, 26, 99, 101], 'Manni,': [25, 100], 'Manni': [27, 102], 'Centre,': [29, 47, 67, 85, 104, 122, 142, 160, 185], 'Institute': [30, 48, 68, 86, 105, 123, 143, 161, 186], 'Neurology': [32, 50, 70, 88, 107, 125, 145, 163], "'C.": [33, 51, 71, 89, 108, 126, 146, 164], "Mondimo',": [34, 52, 72, 90, 109, 127, 147, 165, 190], 'Pavia,': [35, 53, 73, 91, 110, 128, 148, 166, 194], 'ItalySearch': [36, 54, 74, 92, 111, 129, 149, 167], 'for': [37, 55, 75, 93, 112, 130, 150, 168, 285], 'more': [38, 56, 76, 94, 113, 131, 151, 169], 'papers': [39, 57, 77, 95, 114, 132, 152, 170], 'this': [41, 59, 79, 97, 116, 134, 154, 172, 266, 286], 'authorLucia': [42, 117], 'Politini,': [43, 118], 'Lucia': [44, 119], 'Politini': [45, 120], 'authorMaria': [60, 135], 'Teresa': [61, 64, 136, 139], 'Ratti,': [62, 137], 'Maria': [63, 138], 'Ratti': [65, 140], 'authorAmelia': [80, 155], 'Tartara,': [81, 156, 183], 'Amelia': [82, 157], 'Tartara': [83, 158], 'author': [98, 173], 'First': [174], 'published:': [175], '05': [176], 'January': [177], '2002': [178], 'https://doi.org/10.1046/j.1365-2869.1999.00166.xCitations:': [179], '23': [180], 'Prof.': [181], 'A.': [182], 'Neurology,': [188], "'C": [189], 'Via': [191], 'Palestro,': [192], '3-27100': [193], 'Italy.': [195], 'Tel:': [196], '+39': [197, 202], '382': [198, 203], '380': [199, 204], '250;': [200], 'fax:': [201], '286;': [205], 'e-mail:': [206], '[email protected]': [207], 'Read': [208], 'full': [210, 221], 'textAboutPDF': [211], 'ToolsRequest': [212], 'permissionExport': [213], 'citationAdd': [214], 'to': [215, 237, 260], 'favoritesTrack': [216], 'citation': [217], 'ShareShare': [218], 'Give': [219], 'accessShare': [220, 223], 'text': [222], 'full-text': [224, 239, 263], 'accessPlease': [225], 'review': [226], 'our': [227], 'Terms': [228, 251], 'Conditions': [230, 253], 'Use': [232], 'check': [234], 'box': [235], 'below': [236, 259], 'share': [238, 261], 'version': [240, 264], 'article.I': [242], 'have': [243], 'read': [244], 'accept': [246], 'Wiley': [248], 'Online': [249], 'Library': [250], 'UseShareable': [255], 'LinkUse': [256], 'link': [258], 'a': [262, 277], 'article': [267], 'with': [268], 'your': [269], 'friends': [270], 'colleagues.': [272], 'Learn': [273], 'more.Copy': [274], 'URL': [275], 'Share': [276], 'linkShare': [278], 'onFacebookTwitterLinked': [279], 'InRedditWechat': [280], 'No': [281], 'abstract': [282], 'is': [283], 'available': [284], 'article.Citing': [287], 'Literature': [288], 'Volume8,': [289], 'Issue4December': [290], '1999Pages': [291], 'RelatedInformation': [293]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1484350802', 'counts_by_year': [{'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 1}, {'year': 2021, 'cited_by_count': 2}, {'year': 2020, 'cited_by_count': 5}, {'year': 2019, 'cited_by_count': 2}, {'year': 2018, 'cited_by_count': 1}, {'year': 2017, 'cited_by_count': 1}, {'year': 2016, 'cited_by_count': 4}, {'year': 2015, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 2}, {'year': 2013, 'cited_by_count': 2}, {'year': 2012, 'cited_by_count': 5}], 'updated_date': '2024-12-13T11:54:58.024736', 'created_date': '2016-06-24'}