Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2003554693', 'doi': 'https://doi.org/10.1016/j.clinph.2011.11.262', 'title': 'Muscle ultrasonography: A diagnostic tool for amyotrophic lateral sclerosis', 'display_name': 'Muscle ultrasonography: A diagnostic tool for amyotrophic lateral sclerosis', 'publication_year': 2012, 'publication_date': '2012-01-14', 'ids': {'openalex': 'https://openalex.org/W2003554693', 'doi': 'https://doi.org/10.1016/j.clinph.2011.11.262', 'mag': '2003554693', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/22244867'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/j.clinph.2011.11.262', '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/A5045628390', 'display_name': 'Ilse M.P. Arts', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I145872427', 'display_name': 'Radboud University Nijmegen', 'ror': 'https://ror.org/016xsfp80', 'country_code': 'NL', 'type': 'education', 'lineage': ['https://openalex.org/I145872427']}, {'id': 'https://openalex.org/I2802934949', 'display_name': 'Radboud University Medical Center', 'ror': 'https://ror.org/05wg1m734', 'country_code': 'NL', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802934949']}], 'countries': ['NL'], 'is_corresponding': False, 'raw_author_name': 'Ilse M.P. Arts', 'raw_affiliation_strings': ['Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands'], 'affiliations': [{'raw_affiliation_string': 'Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands', 'institution_ids': ['https://openalex.org/I145872427', 'https://openalex.org/I2802934949']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5059334004', 'display_name': 'Sebastiaan Overeem', 'orcid': 'https://orcid.org/0000-0002-6445-9836'}, 'institutions': [{'id': 'https://openalex.org/I145872427', 'display_name': 'Radboud University Nijmegen', 'ror': 'https://ror.org/016xsfp80', 'country_code': 'NL', 'type': 'education', 'lineage': ['https://openalex.org/I145872427']}, {'id': 'https://openalex.org/I2802934949', 'display_name': 'Radboud University Medical Center', 'ror': 'https://ror.org/05wg1m734', 'country_code': 'NL', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802934949']}], 'countries': ['NL'], 'is_corresponding': False, 'raw_author_name': 'Sebastiaan Overeem', 'raw_affiliation_strings': ['Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands'], 'affiliations': [{'raw_affiliation_string': 'Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands', 'institution_ids': ['https://openalex.org/I145872427', 'https://openalex.org/I2802934949']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5075538316', 'display_name': 'Sigrid Pillen', 'orcid': 'https://orcid.org/0000-0001-8679-9535'}, 'institutions': [{'id': 'https://openalex.org/I145872427', 'display_name': 'Radboud University Nijmegen', 'ror': 'https://ror.org/016xsfp80', 'country_code': 'NL', 'type': 'education', 'lineage': ['https://openalex.org/I145872427']}, {'id': 'https://openalex.org/I2802934949', 'display_name': 'Radboud University Medical Center', 'ror': 'https://ror.org/05wg1m734', 'country_code': 'NL', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802934949']}], 'countries': ['NL'], 'is_corresponding': False, 'raw_author_name': 'Sigrid Pillen', 'raw_affiliation_strings': ['Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands'], 'affiliations': [{'raw_affiliation_string': 'Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands', 'institution_ids': ['https://openalex.org/I145872427', 'https://openalex.org/I2802934949']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5106944873', 'display_name': 'Bert U. Kleine', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I145872427', 'display_name': 'Radboud University Nijmegen', 'ror': 'https://ror.org/016xsfp80', 'country_code': 'NL', 'type': 'education', 'lineage': ['https://openalex.org/I145872427']}, {'id': 'https://openalex.org/I2802934949', 'display_name': 'Radboud University Medical Center', 'ror': 'https://ror.org/05wg1m734', 'country_code': 'NL', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802934949']}], 'countries': ['NL'], 'is_corresponding': False, 'raw_author_name': 'Bert U. Kleine', 'raw_affiliation_strings': ['Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands'], 'affiliations': [{'raw_affiliation_string': 'Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands', 'institution_ids': ['https://openalex.org/I145872427', 'https://openalex.org/I2802934949']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5049988596', 'display_name': 'Werner A. Boekestein', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2801766299', 'display_name': 'Medisch Spectrum Twente', 'ror': 'https://ror.org/033xvax87', 'country_code': 'NL', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2801766299']}], 'countries': ['NL'], 'is_corresponding': False, 'raw_author_name': 'Werner A. Boekestein', 'raw_affiliation_strings': ['Department of Neurology, Medical Spectrum Twente, Enschede, the Netherlands.'], 'affiliations': [{'raw_affiliation_string': 'Department of Neurology, Medical Spectrum Twente, Enschede, the Netherlands.', 'institution_ids': ['https://openalex.org/I2801766299']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5016306610', 'display_name': 'Machiel J. Zwarts', 'orcid': 'https://orcid.org/0000-0003-3254-5438'}, 'institutions': [{'id': 'https://openalex.org/I145872427', 'display_name': 'Radboud University Nijmegen', 'ror': 'https://ror.org/016xsfp80', 'country_code': 'NL', 'type': 'education', 'lineage': ['https://openalex.org/I145872427']}, {'id': 'https://openalex.org/I2802934949', 'display_name': 'Radboud University Medical Center', 'ror': 'https://ror.org/05wg1m734', 'country_code': 'NL', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802934949']}], 'countries': ['NL'], 'is_corresponding': False, 'raw_author_name': 'Machiel J. Zwarts', 'raw_affiliation_strings': ['Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands'], 'affiliations': [{'raw_affiliation_string': 'Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands', 'institution_ids': ['https://openalex.org/I145872427', 'https://openalex.org/I2802934949']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5052083951', 'display_name': 'Helenius J. Schelhaas', 'orcid': 'https://orcid.org/0000-0002-8594-4478'}, 'institutions': [{'id': 'https://openalex.org/I145872427', 'display_name': 'Radboud University Nijmegen', 'ror': 'https://ror.org/016xsfp80', 'country_code': 'NL', 'type': 'education', 'lineage': ['https://openalex.org/I145872427']}, {'id': 'https://openalex.org/I2802934949', 'display_name': 'Radboud University Medical Center', 'ror': 'https://ror.org/05wg1m734', 'country_code': 'NL', 'type': 'healthcare', 'lineage': ['https://openalex.org/I2802934949']}], 'countries': ['NL'], 'is_corresponding': False, 'raw_author_name': 'H. Jurgen Schelhaas', 'raw_affiliation_strings': ['Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands'], 'affiliations': [{'raw_affiliation_string': 'Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands', 'institution_ids': ['https://openalex.org/I145872427', 'https://openalex.org/I2802934949']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 3, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 3590, 'currency': 'USD', 'value_usd': 3590, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 4.453, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 99, 'citation_normalized_percentile': {'value': 0.999903, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 97, 'max': 98}, 'biblio': {'volume': '123', 'issue': '8', 'first_page': '1662', 'last_page': '1667'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10855', 'display_name': 'Amyotrophic Lateral Sclerosis and Frontotemporal Dementia', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2728', 'display_name': 'Neurology'}, '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/T10855', 'display_name': 'Amyotrophic Lateral Sclerosis and Frontotemporal Dementia', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2728', 'display_name': 'Neurology'}, '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/T12400', 'display_name': 'Gene Therapy for Spinal Muscular Atrophy', 'score': 0.9947, 'subfield': {'id': 'https://openalex.org/subfields/2716', 'display_name': 'Genetics'}, '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/T10085', 'display_name': "Pathophysiology of Parkinson's Disease", 'score': 0.969, 'subfield': {'id': 'https://openalex.org/subfields/2728', 'display_name': 'Neurology'}, '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/fasciculation', 'display_name': 'Fasciculation', 'score': 0.8798418}, {'id': 'https://openalex.org/keywords/spinal-muscular-atrophy', 'display_name': 'Spinal Muscular Atrophy', 'score': 0.532378}, {'id': 'https://openalex.org/keywords/motor-neuron', 'display_name': 'Motor Neuron', 'score': 0.528872}, {'id': 'https://openalex.org/keywords/upper-motor-neuron', 'display_name': 'Upper motor neuron', 'score': 0.51089686}, {'id': 'https://openalex.org/keywords/skeletal-muscle-atrophy', 'display_name': 'Skeletal Muscle Atrophy', 'score': 0.508551}, {'id': 'https://openalex.org/keywords/subclinical-infection', 'display_name': 'Subclinical infection', 'score': 0.49864984}], 'concepts': [{'id': 'https://openalex.org/C2780596555', 'wikidata': 'https://www.wikidata.org/wiki/Q206901', 'display_name': 'Amyotrophic lateral sclerosis', 'level': 3, 'score': 0.97192276}, {'id': 'https://openalex.org/C2778970341', 'wikidata': 'https://www.wikidata.org/wiki/Q1397878', 'display_name': 'Fasciculation', 'level': 2, 'score': 0.8798418}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.7382115}, {'id': 'https://openalex.org/C2776752467', 'wikidata': 'https://www.wikidata.org/wiki/Q1133903', 'display_name': 'Motor neuron', 'level': 3, 'score': 0.69143224}, {'id': 'https://openalex.org/C529618451', 'wikidata': 'https://www.wikidata.org/wiki/Q234904', 'display_name': 'Ultrasonography', 'level': 2, 'score': 0.66549164}, {'id': 'https://openalex.org/C2781354215', 'wikidata': 'https://www.wikidata.org/wiki/Q3875059', 'display_name': 'Upper motor neuron', 'level': 4, 'score': 0.51089686}, {'id': 'https://openalex.org/C113280763', 'wikidata': 'https://www.wikidata.org/wiki/Q2326546', 'display_name': 'Subclinical infection', 'level': 2, 'score': 0.49864984}, {'id': 'https://openalex.org/C143753070', 'wikidata': 'https://www.wikidata.org/wiki/Q162564', 'display_name': 'Ultrasound', 'level': 2, 'score': 0.49008715}, {'id': 'https://openalex.org/C126838900', 'wikidata': 'https://www.wikidata.org/wiki/Q77604', 'display_name': 'Radiology', 'level': 1, 'score': 0.36462954}, {'id': 'https://openalex.org/C142724271', 'wikidata': 'https://www.wikidata.org/wiki/Q7208', 'display_name': 'Pathology', 'level': 1, 'score': 0.30634648}, {'id': 'https://openalex.org/C105702510', 'wikidata': 'https://www.wikidata.org/wiki/Q514', 'display_name': 'Anatomy', 'level': 1, 'score': 0.26596835}, {'id': 'https://openalex.org/C2779134260', 'wikidata': 'https://www.wikidata.org/wiki/Q12136', 'display_name': 'Disease', 'level': 2, 'score': 0.18211025}], 'mesh': [{'descriptor_ui': 'D000690', 'descriptor_name': 'Amyotrophic Lateral Sclerosis', 'qualifier_ui': 'Q000175', 'qualifier_name': 'diagnosis', 'is_major_topic': True}, {'descriptor_ui': 'D018482', 'descriptor_name': 'Muscle, Skeletal', 'qualifier_ui': 'Q000000981', 'qualifier_name': 'diagnostic imaging', 'is_major_topic': True}, {'descriptor_ui': 'D000328', 'descriptor_name': 'Adult', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000368', 'descriptor_name': 'Aged', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000690', 'descriptor_name': 'Amyotrophic Lateral Sclerosis', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000690', 'descriptor_name': 'Amyotrophic Lateral Sclerosis', 'qualifier_ui': 'Q000000981', 'qualifier_name': 'diagnostic imaging', 'is_major_topic': False}, {'descriptor_ui': 'D003937', 'descriptor_name': 'Diagnosis, Differential', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004576', 'descriptor_name': 'Electromyography', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005207', 'descriptor_name': 'Fasciculation', 'qualifier_ui': 'Q000175', 'qualifier_name': 'diagnosis', 'is_major_topic': False}, {'descriptor_ui': 'D005207', 'descriptor_name': 'Fasciculation', 'qualifier_ui': 'Q000000981', 'qualifier_name': 'diagnostic imaging', 'is_major_topic': False}, {'descriptor_ui': 'D005207', 'descriptor_name': 'Fasciculation', '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': 'D016472', 'descriptor_name': 'Motor Neuron Disease', 'qualifier_ui': 'Q000175', 'qualifier_name': 'diagnosis', 'is_major_topic': False}, {'descriptor_ui': 'D016472', 'descriptor_name': 'Motor Neuron Disease', 'qualifier_ui': 'Q000000981', 'qualifier_name': 'diagnostic imaging', 'is_major_topic': False}, {'descriptor_ui': 'D016472', 'descriptor_name': 'Motor Neuron Disease', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D009046', 'descriptor_name': 'Motor Neurons', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D009046', 'descriptor_name': 'Motor Neurons', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D018482', 'descriptor_name': 'Muscle, Skeletal', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D009460', 'descriptor_name': 'Neurologic Examination', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D011446', 'descriptor_name': 'Prospective Studies', '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': 'D016037', 'descriptor_name': 'Single-Blind Method', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D014463', 'descriptor_name': 'Ultrasonography', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/j.clinph.2011.11.262', '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/22244867', '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': [{'id': 'https://metadata.un.org/sdg/3', 'display_name': 'Good health and well-being', 'score': 0.71}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 24, 'referenced_works': ['https://openalex.org/W1963577793', 'https://openalex.org/W1969045076', 'https://openalex.org/W1974886043', 'https://openalex.org/W1980856354', 'https://openalex.org/W1991022478', 'https://openalex.org/W1996723943', 'https://openalex.org/W2001432662', 'https://openalex.org/W2010806344', 'https://openalex.org/W2013243249', 'https://openalex.org/W2046076403', 'https://openalex.org/W2063067835', 'https://openalex.org/W2075328231', 'https://openalex.org/W2078748870', 'https://openalex.org/W2081706282', 'https://openalex.org/W2110258855', 'https://openalex.org/W2124189440', 'https://openalex.org/W2127905432', 'https://openalex.org/W2142064395', 'https://openalex.org/W2146272590', 'https://openalex.org/W2158974407', 'https://openalex.org/W2161938104', 'https://openalex.org/W2319693271', 'https://openalex.org/W4295135156', 'https://openalex.org/W82657763'], 'related_works': ['https://openalex.org/W4361242846', 'https://openalex.org/W4230768211', 'https://openalex.org/W4206162425', 'https://openalex.org/W2780904974', 'https://openalex.org/W2772074919', 'https://openalex.org/W2507682763', 'https://openalex.org/W2058688785', 'https://openalex.org/W1963544390', 'https://openalex.org/W1835962715', 'https://openalex.org/W1568055891'], 'abstract_inverted_index': {'In': [0, 100], 'a': [1, 140, 153], 'prospective': [2], 'study': [3], 'we': [4, 19], 'tested': [5], 'whether': [6], 'muscle': [7, 48, 56], 'ultrasonography': [8, 24, 105, 151], 'can': [9, 125], 'differentiate': [10, 126], 'between': [11, 90, 127], 'amyotrophic': [12, 128], 'lateral': [13, 129], 'sclerosis': [14, 130], '(ALS)': [15], 'and': [16, 54, 80, 92, 97, 131, 136, 138], 'mimics.': [17], 'Furthermore,': [18], 'assessed': [20], 'the': [21, 101, 157], 'ability': [22], 'of': [23, 45, 161], 'to': [25, 143], 'identify': [26], 'subclinical': [27], 'lower': [28, 110, 147], 'motor': [29, 38, 111, 148], 'neuron': [30, 39, 112, 149], 'involvement.In': [31], '59': [32], 'patients,': [33, 104], 'suspected': [34], 'for': [35, 59, 65, 145], 'adult': [36], 'onset': [37], 'disease,': [40], 'ultrasound': [41, 124], 'scans': [42], 'were': [43, 82, 115], 'made': [44], '12': [46], 'different': [47], 'groups.': [49], 'Echo': [50], 'intensity': [51, 69], 'was': [52, 57, 62, 70], 'determined': [53], 'each': [55], 'screened': [58], 'fasciculations.': [60], 'Ultrasonography': [61], 'considered': [63], 'diagnostic': [64, 158], 'ALS': [66, 91, 103], 'when': [67], 'echo': [68], '1.5': [71], 'SD': [72], 'above': [73], 'normal': [74], 'in': [75, 84, 156], 'at': [76, 85], 'least': [77, 86], 'two': [78], 'muscles': [79], 'fasciculations': [81], 'present': [83], 'four': [87], 'muscles.Ultrasonography': [88], 'differentiated': [89], 'mimics': [93, 132], 'with': [94, 109, 133], '96%': [95], 'sensitivity': [96, 135], '84%': [98], 'specificity.': [99], '27': [102], 'detected': [106], '15': [107], 'regions': [108], 'involvement': [113], 'that': [114], 'negative': [116], 'using': [117], 'either': [118], 'clinical': [119], 'examination': [120], 'or': [121], 'needle': [122], 'EMG.Muscle': [123], 'high': [134], 'specificity,': [137], 'is': [139, 152], 'sensitive': [141], 'tool': [142, 155], 'screen': [144], 'regional': [146], 'involvement.Muscle': [150], 'promising': [154], 'work': [159], 'up': [160], 'ALS.': [162]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2003554693', 'counts_by_year': [{'year': 2024, 'cited_by_count': 5}, {'year': 2023, 'cited_by_count': 3}, {'year': 2022, 'cited_by_count': 8}, {'year': 2021, 'cited_by_count': 7}, {'year': 2020, 'cited_by_count': 11}, {'year': 2019, 'cited_by_count': 8}, {'year': 2018, 'cited_by_count': 12}, {'year': 2017, 'cited_by_count': 13}, {'year': 2016, 'cited_by_count': 11}, {'year': 2015, 'cited_by_count': 7}, {'year': 2014, 'cited_by_count': 8}, {'year': 2013, 'cited_by_count': 3}, {'year': 2012, 'cited_by_count': 2}], 'updated_date': '2024-09-14T02:13:26.402433', 'created_date': '2016-06-24'}