Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W4388551833', 'doi': 'https://doi.org/10.1186/s41606-023-00091-3', 'title': 'Comparison of the clinical and electrophysiological characteristics between type 1 and type 2 narcolepsy: a cross-sectional study', 'display_name': 'Comparison of the clinical and electrophysiological characteristics between type 1 and type 2 narcolepsy: a cross-sectional study', 'publication_year': 2023, 'publication_date': '2023-11-10', 'ids': {'openalex': 'https://openalex.org/W4388551833', 'doi': 'https://doi.org/10.1186/s41606-023-00091-3'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1186/s41606-023-00091-3', 'pdf_url': 'https://sleep.biomedcentral.com/counter/pdf/10.1186/s41606-023-00091-3', 'source': {'id': 'https://openalex.org/S4210227080', 'display_name': 'Sleep Science and Practice', 'issn_l': '2398-2683', 'issn': ['2398-2683'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320256', 'host_organization_name': 'BioMed Central', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310320256'], 'host_organization_lineage_names': ['Springer Nature', 'BioMed Central'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': True, 'oa_status': 'gold', 'oa_url': 'https://sleep.biomedcentral.com/counter/pdf/10.1186/s41606-023-00091-3', 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5083241846', 'display_name': 'K Niijima', 'orcid': None}, 'institutions': [], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Kuniyuki Niijima', 'raw_affiliation_strings': ['Sleep Medicine Center, Chutoen General Medical Center, 1-1 Shobugaike, Kakegawa City, Shizuoka, Japan'], 'affiliations': [{'raw_affiliation_string': 'Sleep Medicine Center, Chutoen General Medical Center, 1-1 Shobugaike, Kakegawa City, Shizuoka, Japan', 'institution_ids': []}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5082814871', 'display_name': 'Masakazu Wakai', 'orcid': None}, 'institutions': [], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Masakazu Wakai', 'raw_affiliation_strings': ['Sleep Medicine Center, Chutoen General Medical Center, 1-1 Shobugaike, Kakegawa City, Shizuoka, Japan'], 'affiliations': [{'raw_affiliation_string': 'Sleep Medicine Center, Chutoen General Medical Center, 1-1 Shobugaike, Kakegawa City, Shizuoka, Japan', 'institution_ids': []}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 0, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 1690, 'currency': 'GBP', 'value_usd': 2072, 'provenance': 'doaj'}, 'apc_paid': {'value': 1690, 'currency': 'GBP', 'value_usd': 2072, 'provenance': 'doaj'}, 'fwci': 0.374, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 1, 'citation_normalized_percentile': {'value': 0.57693, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 68, 'max': 79}, 'biblio': {'volume': '7', 'issue': '1', 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10985', 'display_name': 'Sleep and Wakefulness Research', 'score': 1.0, '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'}}, 'topics': [{'id': 'https://openalex.org/T10985', 'display_name': 'Sleep and Wakefulness Research', 'score': 1.0, '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': 0.9816, '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'}}, {'id': 'https://openalex.org/T12569', 'display_name': 'Restless Legs Syndrome Research', 'score': 0.9642, 'subfield': {'id': 'https://openalex.org/subfields/2713', 'display_name': 'Epidemiology'}, '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/sleep-paralysis', 'display_name': 'Sleep paralysis', 'score': 0.86949265}, {'id': 'https://openalex.org/keywords/epworth-sleepiness-scale', 'display_name': 'Epworth Sleepiness Scale', 'score': 0.7580129}], 'concepts': [{'id': 'https://openalex.org/C2779494582', 'wikidata': 'https://www.wikidata.org/wiki/Q189561', 'display_name': 'Narcolepsy', 'level': 3, 'score': 0.97140896}, {'id': 'https://openalex.org/C2780163352', 'wikidata': 'https://www.wikidata.org/wiki/Q944473', 'display_name': 'Cataplexy', 'level': 4, 'score': 0.9060548}, {'id': 'https://openalex.org/C2777133385', 'wikidata': 'https://www.wikidata.org/wiki/Q486851', 'display_name': 'Sleep paralysis', 'level': 5, 'score': 0.86949265}, {'id': 'https://openalex.org/C2777446050', 'wikidata': 'https://www.wikidata.org/wiki/Q1664214', 'display_name': 'Multiple Sleep Latency Test', 'level': 5, 'score': 0.83471435}, {'id': 'https://openalex.org/C2778664715', 'wikidata': 'https://www.wikidata.org/wiki/Q1347756', 'display_name': 'Epworth Sleepiness Scale', 'level': 4, 'score': 0.7580129}, {'id': 'https://openalex.org/C2778205975', 'wikidata': 'https://www.wikidata.org/wiki/Q1754874', 'display_name': 'Polysomnography', 'level': 3, 'score': 0.69384927}, {'id': 'https://openalex.org/C2781433485', 'wikidata': 'https://www.wikidata.org/wiki/Q3144201', 'display_name': 'Excessive daytime sleepiness', 'level': 4, 'score': 0.5999162}, {'id': 'https://openalex.org/C1513209611', 'wikidata': 'https://www.wikidata.org/wiki/Q177190', 'display_name': 'Sleep disorder', 'level': 3, 'score': 0.5219799}, {'id': 'https://openalex.org/C15744967', 'wikidata': 'https://www.wikidata.org/wiki/Q9418', 'display_name': 'Psychology', 'level': 0, 'score': 0.50274944}, {'id': 'https://openalex.org/C16568411', 'wikidata': 'https://www.wikidata.org/wiki/Q83042', 'display_name': 'Neurology', 'level': 2, 'score': 0.48551083}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.45421728}, {'id': 'https://openalex.org/C42219234', 'wikidata': 'https://www.wikidata.org/wiki/Q131130', 'display_name': 'Anesthesia', 'level': 1, 'score': 0.38321045}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.37867224}, {'id': 'https://openalex.org/C2781210498', 'wikidata': 'https://www.wikidata.org/wiki/Q1869874', 'display_name': 'Insomnia', 'level': 2, 'score': 0.30514783}, {'id': 'https://openalex.org/C118552586', 'wikidata': 'https://www.wikidata.org/wiki/Q7867', 'display_name': 'Psychiatry', 'level': 1, 'score': 0.2620685}, {'id': 'https://openalex.org/C2781326671', 'wikidata': 'https://www.wikidata.org/wiki/Q754424', 'display_name': 'Apnea', 'level': 2, 'score': 0.13616478}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1186/s41606-023-00091-3', 'pdf_url': 'https://sleep.biomedcentral.com/counter/pdf/10.1186/s41606-023-00091-3', 'source': {'id': 'https://openalex.org/S4210227080', 'display_name': 'Sleep Science and Practice', 'issn_l': '2398-2683', 'issn': ['2398-2683'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320256', 'host_organization_name': 'BioMed Central', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310320256'], 'host_organization_lineage_names': ['Springer Nature', 'BioMed Central'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1186/s41606-023-00091-3', 'pdf_url': 'https://sleep.biomedcentral.com/counter/pdf/10.1186/s41606-023-00091-3', 'source': {'id': 'https://openalex.org/S4210227080', 'display_name': 'Sleep Science and Practice', 'issn_l': '2398-2683', 'issn': ['2398-2683'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320256', 'host_organization_name': 'BioMed Central', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310320256'], 'host_organization_lineage_names': ['Springer Nature', 'BioMed Central'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'score': 0.67, 'id': 'https://metadata.un.org/sdg/3', 'display_name': 'Good health and well-being'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 10, 'referenced_works': ['https://openalex.org/W1942608388', 'https://openalex.org/W2053360620', 'https://openalex.org/W2071660524', 'https://openalex.org/W2130741672', 'https://openalex.org/W2140159589', 'https://openalex.org/W2788059256', 'https://openalex.org/W2963660489', 'https://openalex.org/W3198716445', 'https://openalex.org/W4224238430', 'https://openalex.org/W45849756'], 'related_works': ['https://openalex.org/W4386388574', 'https://openalex.org/W4378840798', 'https://openalex.org/W2561609300', 'https://openalex.org/W2482630808', 'https://openalex.org/W2106670492', 'https://openalex.org/W2097842946', 'https://openalex.org/W2090971663', 'https://openalex.org/W2031956079', 'https://openalex.org/W1976681695', 'https://openalex.org/W1570281328'], 'abstract_inverted_index': {'Abstract': [0], 'Introduction': [1], 'Narcolepsy': [2], 'is': [3, 288], 'a': [4, 100, 156, 272, 307, 336], 'chronic': [5], 'brain': [6], 'disease': [7], 'characterized': [8], 'by': [9, 69, 123, 189, 290], 'excessive': [10], 'sleepiness': [11, 185, 194], 'and': [12, 35, 64, 83, 93, 116, 137, 151, 154, 177, 230, 234, 262, 295, 315], 'classified': [13], 'into': [14], 'two': [15, 41], 'types': [16, 42], 'based': [17], 'on': [18, 303], 'the': [19, 62, 117, 124, 148, 169, 205, 259, 291, 296, 316, 327, 340, 345], 'presence': [20, 125, 206], 'of': [21, 26, 67, 75, 111, 119, 128, 147, 158, 192, 207, 254, 284, 310, 323, 329, 339, 342], 'cataplexy': [22, 132, 139], 'or': [23, 126], 'reduced': [24], 'level': [25], 'cerebrospinal': [27], 'fluid': [28], 'orexin-A': [29], '(hypocretine-1):': [30], 'narcolepsy': [31, 36, 120, 348], 'type': [32, 37, 118], '1': [33], '(NT1)': [34], '2': [38], '(NT2).': [39], 'These': [40], 'differ': [43], 'in': [44, 52, 106, 200, 245, 249, 269, 276, 331, 349], 'symptoms': [45], 'other': [46], 'than': [47, 202, 247], 'cataplexy,': [48, 129], 'as': [49, 51, 99, 258], 'well': [50], 'certain': [53], 'examination': [54], 'findings.': [55], 'The': [56], 'present': [57], 'study': [58, 333], 'aimed': [59], 'to': [60, 162], 'investigate': [61], 'clinical': [63], 'electrophysiological': [65], 'characteristics': [66, 146], 'NT1': [68, 201, 246, 277, 311, 319, 330, 343], 'comparing': [70], 'its': [71], 'features': [72], 'with': [73, 86, 108, 131, 135, 142, 280, 313, 318, 347], 'those': [74, 248], 'NT2.': [76, 143, 182, 203, 250, 281], 'Methods': [77], 'Subjects': [78], 'were': [79, 133, 140, 175, 181, 242], '118': [80, 170], 'first': [81], 'diagnosed': [82, 134, 141], 'untreated': [84], 'patients': [85, 130, 173, 179, 317, 346], 'narcolepsy.': [87], 'They': [88], 'underwent': [89], 'both': [90], 'polysomnography': [91], '(PSG)': [92], 'multiple': [94], 'sleep': [95, 101, 208, 215, 224, 231, 255, 266, 286, 301], 'latency': [96], 'test': [97], '(MSLT)': [98], 'test.': [102], 'Diagnosis': [103], 'was': [104, 121, 187, 197, 305], 'established': [105], 'accordance': [107], 'International': [109], 'Classification': [110], 'Sleep': [112], 'Disorders,': [113], 'Third': [114], 'Edition,': [115], 'determined': [122], 'absence': [127], 'NT1,': [136, 176], 'without': [138], 'We': [144], 'investigated': [145], 'patients,': [149], 'PSG': [150, 304], 'MSLT': [152], 'outcomes,': [153], 'applied': [155], 'suite': [157], 'duly': [159], 'statistical': [160], 'analysis': [161], 'account': [163], 'for': [164], 'each': [165], 'parameter.': [166], 'Results': [167], 'Among': [168], 'subjects,': [171], '35': [172], '(29.7%)': [174], '83': [178], '(70.3%)': [180], 'Excessive': [183], 'daytime': [184], 'which': [186, 287], 'measured': [188, 268], 'Japanese': [190], 'version': [191], 'Epworth': [193], 'scale': [195], '(JESS)': [196], 'significantly': [198, 243], 'higher': [199, 244], 'Furthermore,': [204], 'hallucination': [209], '(': [210, 217, 225, 237], 'n': [211, 218, 226, 238], '=': [212, 219, 227, 239], '29,': [213], '82.9%),': [214], 'paralysis': [216], '18,': [220], '51.4%),': [221], 'difficult': [222], 'maintaining': [223, 324], '22,': [228], '62.9%),': [229], 'related': [232], 'movement': [233], 'behavior': [235], 'disorders': [236], '7,': [240], '20.0%)': [241], 'Additionally,': [251], 'parameters': [252], 'indicative': [253], 'fragmentation,': [256], 'such': [257], 'arousal': [260, 293], 'index': [261, 294], 'wake': [263, 298], 'time': [264, 299], 'after': [265, 300], 'onset': [267, 302], 'PSG,': [270], 'exhibited': [271], 'statistically': [273], 'significant': [274], 'increase': [275], 'when': [278], 'contrasted': [279], 'Conclusions': [282], 'Fragmentation': [283], 'nocturnal': [285], 'explained': [289], 'high': [292], 'long': [297], 'considered': [306], 'characteristic': [308], 'finding': [309], 'compared': [312], 'NT2,': [314], 'experienced': [320], 'greater': [321], 'difficulty': [322], 'sleep.': [325], 'Concomitantly,': [326], 'prevalence': [328, 341], 'this': [332], 'may': [334], 'be': [335], 'representative': [337], 'value': [338], 'among': [344], 'Japan.': [350]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W4388551833', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}], 'updated_date': '2024-12-14T02:58:05.824064', 'created_date': '2023-11-10'}