Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2098128396', 'doi': 'https://doi.org/10.1177/1352458514546513', 'title': 'Regional patterns of grey matter atrophy and magnetisation transfer ratio abnormalities in multiple sclerosis clinical subgroups: A voxel-based analysis study', 'display_name': 'Regional patterns of grey matter atrophy and magnetisation transfer ratio abnormalities in multiple sclerosis clinical subgroups: A voxel-based analysis study', 'publication_year': 2014, 'publication_date': '2014-08-21', 'ids': {'openalex': 'https://openalex.org/W2098128396', 'doi': 'https://doi.org/10.1177/1352458514546513', 'mag': '2098128396', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/25145689', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/4390521'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1177/1352458514546513', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S136332993', 'display_name': 'Multiple Sclerosis Journal', 'issn_l': '1352-4585', 'issn': ['1352-4585', '1477-0970'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320017', 'host_organization_name': 'SAGE Publishing', 'host_organization_lineage': ['https://openalex.org/P4310320017'], 'host_organization_lineage_names': ['SAGE Publishing'], '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': True, 'oa_status': 'green', 'oa_url': 'https://europepmc.org/articles/pmc4390521?pdf=render', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5013281427', 'display_name': 'Shahrukh Mallik', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I45129253', 'display_name': 'University College London', 'ror': 'https://ror.org/02jx3x895', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I124357947', 'https://openalex.org/I45129253']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'Shahrukh Mallik', 'raw_affiliation_strings': ['NMR Research Unit, University College London, UK'], 'affiliations': [{'raw_affiliation_string': 'NMR Research Unit, University College London, UK', 'institution_ids': ['https://openalex.org/I45129253']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5074938207', 'display_name': 'Nils Muhlert', 'orcid': 'https://orcid.org/0000-0002-6414-5589'}, 'institutions': [{'id': 'https://openalex.org/I79510175', 'display_name': 'Cardiff University', 'ror': 'https://ror.org/03kk7td41', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I79510175']}, {'id': 'https://openalex.org/I45129253', 'display_name': 'University College London', 'ror': 'https://ror.org/02jx3x895', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I124357947', 'https://openalex.org/I45129253']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'Nils Muhlert', 'raw_affiliation_strings': ['NMR Research Unit, University College London, UK/School of Psychology: Cardiff University, UK'], 'affiliations': [{'raw_affiliation_string': 'NMR Research Unit, University College London, UK/School of Psychology: Cardiff University, UK', 'institution_ids': ['https://openalex.org/I79510175', 'https://openalex.org/I45129253']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5074741988', 'display_name': 'Rebecca S. Samson', 'orcid': 'https://orcid.org/0000-0002-0197-702X'}, 'institutions': [{'id': 'https://openalex.org/I45129253', 'display_name': 'University College London', 'ror': 'https://ror.org/02jx3x895', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I124357947', 'https://openalex.org/I45129253']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'Rebecca S Samson', 'raw_affiliation_strings': ['NMR Research Unit, University College London, UK'], 'affiliations': [{'raw_affiliation_string': 'NMR Research Unit, University College London, UK', 'institution_ids': ['https://openalex.org/I45129253']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5101947249', 'display_name': 'Varun Sethi', 'orcid': 'https://orcid.org/0000-0002-6129-2153'}, 'institutions': [{'id': 'https://openalex.org/I45129253', 'display_name': 'University College London', 'ror': 'https://ror.org/02jx3x895', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I124357947', 'https://openalex.org/I45129253']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'Varun Sethi', 'raw_affiliation_strings': ['NMR Research Unit, University College London, UK'], 'affiliations': [{'raw_affiliation_string': 'NMR Research Unit, University College London, UK', 'institution_ids': ['https://openalex.org/I45129253']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5037442059', 'display_name': 'Claudia A. M. Gandini Wheeler‐Kingshott', 'orcid': 'https://orcid.org/0000-0002-4832-1300'}, 'institutions': [{'id': 'https://openalex.org/I45129253', 'display_name': 'University College London', 'ror': 'https://ror.org/02jx3x895', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I124357947', 'https://openalex.org/I45129253']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'Claudia AM Wheeler-Kingshott', 'raw_affiliation_strings': ['NMR Research Unit, University College London, UK'], 'affiliations': [{'raw_affiliation_string': 'NMR Research Unit, University College London, UK', 'institution_ids': ['https://openalex.org/I45129253']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5103380063', 'display_name': 'David H. Miller', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I45129253', 'display_name': 'University College London', 'ror': 'https://ror.org/02jx3x895', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I124357947', 'https://openalex.org/I45129253']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'David H Miller', 'raw_affiliation_strings': ['NMR Research Unit, University College London, UK'], 'affiliations': [{'raw_affiliation_string': 'NMR Research Unit, University College London, UK', 'institution_ids': ['https://openalex.org/I45129253']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5091342689', 'display_name': 'Declan Chard', 'orcid': 'https://orcid.org/0000-0003-3076-2682'}, 'institutions': [{'id': 'https://openalex.org/I34931013', 'display_name': 'National Institute for Health Research', 'ror': 'https://ror.org/0187kwz08', 'country_code': 'GB', 'type': 'government', 'lineage': ['https://openalex.org/I34931013']}, {'id': 'https://openalex.org/I45129253', 'display_name': 'University College London', 'ror': 'https://ror.org/02jx3x895', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I124357947', 'https://openalex.org/I45129253']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'Declan T Chard', 'raw_affiliation_strings': ['NMR Research Unit, University College London, UK/National Institute for Health Research, University College London Hospitals, UK'], 'affiliations': [{'raw_affiliation_string': 'NMR Research Unit, University College London, UK/National Institute for Health Research, University College London Hospitals, UK', 'institution_ids': ['https://openalex.org/I34931013', 'https://openalex.org/I45129253']}]}], 'countries_distinct_count': 1, 'institutions_distinct_count': 3, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': {'value': 303, 'currency': 'EUR', 'value_usd': 326, 'provenance': 'openapc'}, 'fwci': 1.937, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 18, 'citation_normalized_percentile': {'value': 0.820331, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 90, 'max': 91}, 'biblio': {'volume': '21', 'issue': '4', 'first_page': '423', 'last_page': '432'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10137', 'display_name': 'Diagnosis and Pathogenesis of Multiple Sclerosis', 'score': 1.0, 'subfield': {'id': 'https://openalex.org/subfields/2734', 'display_name': 'Pathology and Forensic 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/T10137', 'display_name': 'Diagnosis and Pathogenesis of Multiple Sclerosis', 'score': 1.0, 'subfield': {'id': 'https://openalex.org/subfields/2734', 'display_name': 'Pathology and Forensic 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/T10308', 'display_name': 'Systemic Lupus Erythematosus and Antiphospholipid Syndrome', 'score': 0.9914, 'subfield': {'id': 'https://openalex.org/subfields/2745', 'display_name': 'Rheumatology'}, '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/T11735', 'display_name': 'Guillain-Barré Syndrome and Related Neuropathies', 'score': 0.9597, '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/grey-matter', 'display_name': 'Grey matter', 'score': 0.7701111}, {'id': 'https://openalex.org/keywords/magnetization-transfer', 'display_name': 'Magnetization transfer', 'score': 0.7299937}, {'id': 'https://openalex.org/keywords/voxel-based-morphometry', 'display_name': 'Voxel-based morphometry', 'score': 0.5944508}, {'id': 'https://openalex.org/keywords/demyelination', 'display_name': 'Demyelination', 'score': 0.525652}], 'concepts': [{'id': 'https://openalex.org/C2781172350', 'wikidata': 'https://www.wikidata.org/wiki/Q194520', 'display_name': 'Atrophy', 'level': 2, 'score': 0.8795697}, {'id': 'https://openalex.org/C2780640218', 'wikidata': 'https://www.wikidata.org/wiki/Q8277', 'display_name': 'Multiple sclerosis', 'level': 2, 'score': 0.8341114}, {'id': 'https://openalex.org/C2778013878', 'wikidata': 'https://www.wikidata.org/wiki/Q646150', 'display_name': 'Grey matter', 'level': 4, 'score': 0.7701111}, {'id': 'https://openalex.org/C54170458', 'wikidata': 'https://www.wikidata.org/wiki/Q663554', 'display_name': 'Voxel', 'level': 2, 'score': 0.7400337}, {'id': 'https://openalex.org/C27826641', 'wikidata': 'https://www.wikidata.org/wiki/Q6731637', 'display_name': 'Magnetization transfer', 'level': 3, 'score': 0.7299937}, {'id': 'https://openalex.org/C200134340', 'wikidata': 'https://www.wikidata.org/wiki/Q845664', 'display_name': 'Voxel-based morphometry', 'level': 4, 'score': 0.5944508}, {'id': 'https://openalex.org/C143409427', 'wikidata': 'https://www.wikidata.org/wiki/Q161238', 'display_name': 'Magnetic resonance imaging', 'level': 2, 'score': 0.59291637}, {'id': 'https://openalex.org/C2781192897', 'wikidata': 'https://www.wikidata.org/wiki/Q822050', 'display_name': 'White matter', 'level': 3, 'score': 0.47242558}, {'id': 'https://openalex.org/C142724271', 'wikidata': 'https://www.wikidata.org/wiki/Q7208', 'display_name': 'Pathology', 'level': 1, 'score': 0.45949367}, {'id': 'https://openalex.org/C2989005', 'wikidata': 'https://www.wikidata.org/wiki/Q214963', 'display_name': 'Nuclear medicine', 'level': 1, 'score': 0.43009242}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.40475303}, {'id': 'https://openalex.org/C126838900', 'wikidata': 'https://www.wikidata.org/wiki/Q77604', 'display_name': 'Radiology', 'level': 1, 'score': 0.21612608}, {'id': 'https://openalex.org/C118552586', 'wikidata': 'https://www.wikidata.org/wiki/Q7867', 'display_name': 'Psychiatry', 'level': 1, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D001921', 'descriptor_name': 'Brain', 'qualifier_ui': 'Q000473', 'qualifier_name': 'pathology', 'is_major_topic': True}, {'descriptor_ui': 'D066128', 'descriptor_name': 'Gray Matter', 'qualifier_ui': 'Q000473', 'qualifier_name': 'pathology', 'is_major_topic': True}, {'descriptor_ui': 'D009103', 'descriptor_name': 'Multiple Sclerosis', 'qualifier_ui': 'Q000473', 'qualifier_name': 'pathology', 'is_major_topic': True}, {'descriptor_ui': 'D000328', 'descriptor_name': 'Adult', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001284', 'descriptor_name': 'Atrophy', 'qualifier_ui': 'Q000473', 'qualifier_name': 'pathology', 'is_major_topic': False}, {'descriptor_ui': 'D001284', 'descriptor_name': 'Atrophy', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001921', 'descriptor_name': 'Brain', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003711', 'descriptor_name': 'Demyelinating Diseases', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003711', 'descriptor_name': 'Demyelinating Diseases', 'qualifier_ui': 'Q000473', 'qualifier_name': 'pathology', 'is_major_topic': False}, {'descriptor_ui': 'D005260', 'descriptor_name': 'Female', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D066128', 'descriptor_name': 'Gray Matter', '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': 'D007090', 'descriptor_name': 'Image Interpretation, Computer-Assisted', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008279', 'descriptor_name': 'Magnetic Resonance Imaging', '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': 'D009103', 'descriptor_name': 'Multiple Sclerosis', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 6, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1177/1352458514546513', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S136332993', 'display_name': 'Multiple Sclerosis Journal', 'issn_l': '1352-4585', 'issn': ['1352-4585', '1477-0970'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320017', 'host_organization_name': 'SAGE Publishing', 'host_organization_lineage': ['https://openalex.org/P4310320017'], 'host_organization_lineage_names': ['SAGE Publishing'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://europepmc.org/articles/pmc4390521', 'pdf_url': 'https://europepmc.org/articles/pmc4390521?pdf=render', 'source': {'id': 'https://openalex.org/S4306400806', 'display_name': 'Europe PMC (PubMed Central)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1303153112', 'host_organization_name': 'European Bioinformatics Institute', 'host_organization_lineage': ['https://openalex.org/I1303153112'], 'host_organization_lineage_names': ['European Bioinformatics Institute'], 'type': 'repository'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://discovery.ucl.ac.uk/id/eprint/1443518/', 'pdf_url': 'https://discovery.ucl.ac.uk/1443518/1/Mult_Scler-2015-Mallik-423-32.pdf', 'source': {'id': 'https://openalex.org/S4306400024', 'display_name': 'UCL Discovery (University College London)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I45129253', 'host_organization_name': 'University College London', 'host_organization_lineage': ['https://openalex.org/I45129253'], 'host_organization_lineage_names': ['University College London'], 'type': 'repository'}, 'license': 'cc-by-nc', 'license_id': 'https://openalex.org/licenses/cc-by-nc', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://discovery.ucl.ac.uk/id/eprint/1443518/1/Mult_Scler-2015-Mallik-423-32.pdf', 'pdf_url': 'https://discovery.ucl.ac.uk/id/eprint/1443518/1/Mult_Scler-2015-Mallik-423-32.pdf', 'source': {'id': 'https://openalex.org/S4306400024', 'display_name': 'UCL Discovery (University College London)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I45129253', 'host_organization_name': 'University College London', 'host_organization_lineage': ['https://openalex.org/I45129253'], 'host_organization_lineage_names': ['University College London'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4390521', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764455111', 'display_name': 'PubMed Central', 'issn_l': None, 'issn': None, 'is_oa': True, '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': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/25145689', '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': {'is_oa': True, 'landing_page_url': 'https://europepmc.org/articles/pmc4390521', 'pdf_url': 'https://europepmc.org/articles/pmc4390521?pdf=render', 'source': {'id': 'https://openalex.org/S4306400806', 'display_name': 'Europe PMC (PubMed Central)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1303153112', 'host_organization_name': 'European Bioinformatics Institute', 'host_organization_lineage': ['https://openalex.org/I1303153112'], 'host_organization_lineage_names': ['European Bioinformatics Institute'], 'type': 'repository'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'score': 0.43, 'display_name': 'Gender equality', 'id': 'https://metadata.un.org/sdg/5'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 41, 'referenced_works': ['https://openalex.org/W1259091075', 'https://openalex.org/W1482855280', 'https://openalex.org/W1600907624', 'https://openalex.org/W1964007754', 'https://openalex.org/W1968478844', 'https://openalex.org/W1973290871', 'https://openalex.org/W1977611630', 'https://openalex.org/W1980540422', 'https://openalex.org/W1997024092', 'https://openalex.org/W2013370381', 'https://openalex.org/W2017271286', 'https://openalex.org/W2024101017', 'https://openalex.org/W2029226538', 'https://openalex.org/W2041757950', 'https://openalex.org/W2047062145', 'https://openalex.org/W2049053520', 'https://openalex.org/W2051597264', 'https://openalex.org/W2058046532', 'https://openalex.org/W2079146964', 'https://openalex.org/W2090616440', 'https://openalex.org/W2099540319', 'https://openalex.org/W2105209479', 'https://openalex.org/W2110402512', 'https://openalex.org/W2111082632', 'https://openalex.org/W2112859760', 'https://openalex.org/W2113948549', 'https://openalex.org/W2119848633', 'https://openalex.org/W2122545833', 'https://openalex.org/W2123525386', 'https://openalex.org/W2124088053', 'https://openalex.org/W2127712005', 'https://openalex.org/W2129134090', 'https://openalex.org/W2130974415', 'https://openalex.org/W2131288952', 'https://openalex.org/W2136618970', 'https://openalex.org/W2152559989', 'https://openalex.org/W2155298532', 'https://openalex.org/W2160872052', 'https://openalex.org/W2164167069', 'https://openalex.org/W2185836129', 'https://openalex.org/W2977883299'], 'related_works': ['https://openalex.org/W3032544972', 'https://openalex.org/W2996456915', 'https://openalex.org/W220777649', 'https://openalex.org/W2116135717', 'https://openalex.org/W2098128396', 'https://openalex.org/W2090616440', 'https://openalex.org/W2061644960', 'https://openalex.org/W2005289459', 'https://openalex.org/W1976498886', 'https://openalex.org/W1976485523'], 'abstract_inverted_index': {'Background:': [0], 'In': [1, 171], 'multiple': [2], 'sclerosis': [3], '(MS),': [4], 'demyelination': [5, 193, 209], 'and': [6, 29, 41, 54, 73, 79, 95, 106, 115, 136, 148, 166, 173, 194, 203, 208], 'neuro-axonal': [7, 44, 195, 206], 'loss': [8, 196, 207], 'occur': [9, 211], 'in': [10, 46, 143, 168, 186, 201], 'the': [11, 33, 144, 160, 187], 'brain': [12], 'grey': [13], 'matter': [14], '(GM).': [15], 'We': [16], 'used': [17, 85], 'magnetic': [18], 'resonance': [19], 'imaging': [20], '(MRI)': [21], 'measures': [22], 'of': [23, 36, 62, 91, 163, 190], 'GM': [24, 92, 189], 'magnetisation': [25, 80], 'transfer': [26, 81], 'ratio': [27], '(MTR)': [28], 'volume': [30, 116], 'to': [31, 86], 'assess': [32], 'regional': [34], 'localisation': [35], 'reduced': [37], 'MTR': [38, 114, 128, 155, 164], '(reflecting': [39, 43], 'demyelination)': [40], 'atrophy': [42, 142, 167], 'loss)': [45], 'relapsing–remitting': [47], 'MS': [48, 52, 57, 66, 97], '(RRMS),': [49], 'secondary': [50], 'progressive': [51, 56], '(SPMS)': [53], 'primary': [55], '(PPMS).': [58], 'Methods:': [59], 'A': [60, 108], 'total': [61], '98': [63], 'people': [64], 'with': [65, 101], '(51': [67], 'RRMS,': [68], '28': [69], 'SPMS,': [70], '19': [71], 'PPMS)': [72], '29': [74], 'controls': [75], 'had': [76], 'T1-weighted': [77], 'volumetric': [78], 'scans.': [82], 'SPM8': [83], 'was': [84, 121, 130, 177], 'undertake': [87], 'voxel-based': [88], 'analysis': [89, 112], '(VBA)': [90], 'tissue': [93], 'volumes': [94], 'MTR.': [96], 'subgroups': [98], 'were': [99], 'compared': [100], 'controls,': [102], 'adjusting': [103], 'for': [104], 'age': [105], 'gender.': [107], 'voxel-by-voxel': [109], 'basis': [110], 'correlation': [111, 162], 'between': [113], 'within': [117], 'each': [118], 'subject': [119], 'group': [120], 'performed,': [122], 'using': [123], 'biological': [124], 'parametric': [125], 'mapping.': [126], 'Results:': [127], 'reduction': [129, 165], 'more': [131, 141], 'extensive': [132, 179], 'than': [133], 'atrophy.': [134], 'RRMS': [135, 157, 191], 'SPMS': [137, 147, 172, 202], 'patients': [138, 150, 158], 'showed': [139, 151], 'proportionately': [140, 152], 'deep': [145, 169, 188], 'GM.': [146, 170], 'PPMS': [149, 174, 204], 'greater': [153], 'cortical': [154], 'reduction.': [156], 'demonstrated': [159], 'most': [161], 'patients,': [175, 192, 205], 'there': [176], 'less': [178], 'correlation.': [180], 'Conclusions:': [181], 'These': [182], 'results': [183], 'suggest': [184], 'that': [185], 'may': [197, 210], 'be': [198], 'linked,': [199], 'while': [200], 'mostly': [212], 'independently.': [213]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2098128396', 'counts_by_year': [{'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 2}, {'year': 2020, 'cited_by_count': 2}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 3}, {'year': 2017, 'cited_by_count': 3}, {'year': 2016, 'cited_by_count': 4}, {'year': 2015, 'cited_by_count': 1}], 'updated_date': '2024-09-11T14:30:50.753660', 'created_date': '2016-06-24'}