Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2032875701', 'doi': 'https://doi.org/10.1038/bjc.1991.122', 'title': 'A comparison of in vivo and in vitro 31P NMR spectra from human breast tumours: variations in phospholipid metabolism', 'display_name': 'A comparison of in vivo and in vitro 31P NMR spectra from human breast tumours: variations in phospholipid metabolism', 'publication_year': 1991, 'publication_date': '1991-04-01', 'ids': {'openalex': 'https://openalex.org/W2032875701', 'doi': 'https://doi.org/10.1038/bjc.1991.122', 'mag': '2032875701', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/2021535', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/1972336'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1038/bjc.1991.122', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S62966998', 'display_name': 'British Journal of Cancer', 'issn_l': '0007-0920', 'issn': ['0007-0920', '1532-1827'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], '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://www.ncbi.nlm.nih.gov/pmc/articles/PMC1972336', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5075814342', 'display_name': 'Timothy Smith', 'orcid': 'https://orcid.org/0000-0002-3945-630X'}, 'institutions': [{'id': 'https://openalex.org/I1325846038', 'display_name': 'Royal Marsden NHS Foundation Trust', 'ror': 'https://ror.org/0008wzh48', 'country_code': 'GB', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1325846038']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'TAD Smith', 'raw_affiliation_strings': ['Department of Nuclear Medicine, Royal Marsden Hospital, Sutton, Surrey, UK.'], 'affiliations': [{'raw_affiliation_string': 'Department of Nuclear Medicine, Royal Marsden Hospital, Sutton, Surrey, UK.', 'institution_ids': ['https://openalex.org/I1325846038']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5020186382', 'display_name': 'J. Glaholm', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I1325846038', 'display_name': 'Royal Marsden NHS Foundation Trust', 'ror': 'https://ror.org/0008wzh48', 'country_code': 'GB', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1325846038']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'J Glaholm', 'raw_affiliation_strings': ['Royal Marsden NHS Foundation Trust.'], 'affiliations': [{'raw_affiliation_string': 'Royal Marsden NHS Foundation Trust.', 'institution_ids': ['https://openalex.org/I1325846038']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5068130659', 'display_name': 'Martin O. Leach', 'orcid': 'https://orcid.org/0000-0002-0756-5368'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'MO Leach', 'raw_affiliation_strings': ['Institute of Cancer Research'], 'affiliations': [{'raw_affiliation_string': 'Institute of Cancer Research', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5002723532', 'display_name': 'L.G. Machin', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I1325846038', 'display_name': 'Royal Marsden NHS Foundation Trust', 'ror': 'https://ror.org/0008wzh48', 'country_code': 'GB', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1325846038']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'L Machin', 'raw_affiliation_strings': ['Royal Marsden NHS Foundation Trust.'], 'affiliations': [{'raw_affiliation_string': 'Royal Marsden NHS Foundation Trust.', 'institution_ids': ['https://openalex.org/I1325846038']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5102109291', 'display_name': 'DJ Collins', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I1325846038', 'display_name': 'Royal Marsden NHS Foundation Trust', 'ror': 'https://ror.org/0008wzh48', 'country_code': 'GB', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1325846038']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'DJ Collins', 'raw_affiliation_strings': ['Royal Marsden NHS Foundation Trust.'], 'affiliations': [{'raw_affiliation_string': 'Royal Marsden NHS Foundation Trust.', 'institution_ids': ['https://openalex.org/I1325846038']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5078379637', 'display_name': 'Geoffrey S. Payne', 'orcid': 'https://orcid.org/0000-0001-8029-1765'}, 'institutions': [{'id': 'https://openalex.org/I4210121186', 'display_name': 'Royal Marsden Hospital', 'ror': 'https://ror.org/034vb5t35', 'country_code': 'GB', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1325846038', 'https://openalex.org/I4210121186']}, {'id': 'https://openalex.org/I142947616', 'display_name': 'Institute of Cancer Research', 'ror': 'https://ror.org/043jzw605', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I124357947', 'https://openalex.org/I142947616']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'GS Payne', 'raw_affiliation_strings': ['Department of Nuclear Medicine; 2Department of Radiotherapy; 3Joint Department of Physics; 4Department of Histopathology; The Royal Marsden Hospital and Institute of Cancer Research, Downs Road, Sutton, Surrey SM2 SPT, UK.'], 'affiliations': [{'raw_affiliation_string': 'Department of Nuclear Medicine; 2Department of Radiotherapy; 3Joint Department of Physics; 4Department of Histopathology; The Royal Marsden Hospital and Institute of Cancer Research, Downs Road, Sutton, Surrey SM2 SPT, UK.', 'institution_ids': ['https://openalex.org/I4210121186', 'https://openalex.org/I142947616']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5008070430', 'display_name': 'V. R. McCready', 'orcid': 'https://orcid.org/0000-0002-3677-3801'}, 'institutions': [{'id': 'https://openalex.org/I4210121186', 'display_name': 'Royal Marsden Hospital', 'ror': 'https://ror.org/034vb5t35', 'country_code': 'GB', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1325846038', 'https://openalex.org/I4210121186']}, {'id': 'https://openalex.org/I142947616', 'display_name': 'Institute of Cancer Research', 'ror': 'https://ror.org/043jzw605', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I124357947', 'https://openalex.org/I142947616']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'VR McCready', 'raw_affiliation_strings': ['Department of Nuclear Medicine; 2Department of Radiotherapy; 3Joint Department of Physics; 4Department of Histopathology; The Royal Marsden Hospital and Institute of Cancer Research, Downs Road, Sutton, Surrey SM2 SPT, UK.'], 'affiliations': [{'raw_affiliation_string': 'Department of Nuclear Medicine; 2Department of Radiotherapy; 3Joint Department of Physics; 4Department of Histopathology; The Royal Marsden Hospital and Institute of Cancer Research, Downs Road, Sutton, Surrey SM2 SPT, UK.', 'institution_ids': ['https://openalex.org/I4210121186', 'https://openalex.org/I142947616']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 3, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 3790, 'currency': 'EUR', 'value_usd': 4690, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 2.637, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 61, 'citation_normalized_percentile': {'value': 0.890297, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 94, 'max': 95}, 'biblio': {'volume': '63', 'issue': '4', 'first_page': '514', 'last_page': '516'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10836', 'display_name': 'Advances in Metabolomics Research', 'score': 0.9955, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10836', 'display_name': 'Advances in Metabolomics Research', 'score': 0.9955, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T10378', 'display_name': 'Magnetic Resonance Imaging Applications in Medicine', 'score': 0.9924, 'subfield': {'id': 'https://openalex.org/subfields/2741', 'display_name': 'Radiology, Nuclear Medicine and Imaging'}, '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/T13539', 'display_name': 'Applications of Calorimetry in Scientific Research', 'score': 0.9823, 'subfield': {'id': 'https://openalex.org/subfields/1606', 'display_name': 'Physical and Theoretical Chemistry'}, 'field': {'id': 'https://openalex.org/fields/16', 'display_name': 'Chemistry'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/phosphodiester-bond', 'display_name': 'Phosphodiester bond', 'score': 0.98771834}, {'id': 'https://openalex.org/keywords/phosphocholine', 'display_name': 'Phosphocholine', 'score': 0.82994324}, {'id': 'https://openalex.org/keywords/nmr-spectroscopy', 'display_name': 'NMR Spectroscopy', 'score': 0.529108}, {'id': 'https://openalex.org/keywords/phosphomonoesters', 'display_name': 'Phosphomonoesters', 'score': 0.46503323}, {'id': 'https://openalex.org/keywords/phosphorylcholine', 'display_name': 'Phosphorylcholine', 'score': 0.45959693}], 'concepts': [{'id': 'https://openalex.org/C38441620', 'wikidata': 'https://www.wikidata.org/wiki/Q863983', 'display_name': 'Phosphodiester bond', 'level': 4, 'score': 0.98771834}, {'id': 'https://openalex.org/C207001950', 'wikidata': 'https://www.wikidata.org/wiki/Q141124', 'display_name': 'In vivo', 'level': 2, 'score': 0.8531208}, {'id': 'https://openalex.org/C2776923060', 'wikidata': 'https://www.wikidata.org/wiki/Q576895', 'display_name': 'Phosphocholine', 'level': 5, 'score': 0.82994324}, {'id': 'https://openalex.org/C2778918659', 'wikidata': 'https://www.wikidata.org/wiki/Q186915', 'display_name': 'Phospholipid', 'level': 3, 'score': 0.68562454}, {'id': 'https://openalex.org/C202751555', 'wikidata': 'https://www.wikidata.org/wiki/Q221681', 'display_name': 'In vitro', 'level': 2, 'score': 0.5833554}, {'id': 'https://openalex.org/C2777739839', 'wikidata': 'https://www.wikidata.org/wiki/Q7187524', 'display_name': 'Phosphomonoesters', 'level': 4, 'score': 0.46503323}, {'id': 'https://openalex.org/C2776833585', 'wikidata': 'https://www.wikidata.org/wiki/Q7187582', 'display_name': 'Phosphorylcholine', 'level': 2, 'score': 0.45959693}, {'id': 'https://openalex.org/C66974803', 'wikidata': 'https://www.wikidata.org/wiki/Q10359898', 'display_name': 'Nuclear magnetic resonance spectroscopy', 'level': 2, 'score': 0.4383766}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.42696851}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.41749552}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', 'level': 1, 'score': 0.38717067}, {'id': 'https://openalex.org/C2777132085', 'wikidata': 'https://www.wikidata.org/wiki/Q46220103', 'display_name': 'Phosphate', 'level': 2, 'score': 0.2144261}, {'id': 'https://openalex.org/C71240020', 'wikidata': 'https://www.wikidata.org/wiki/Q186011', 'display_name': 'Stereochemistry', 'level': 1, 'score': 0.1726326}, {'id': 'https://openalex.org/C67705224', 'wikidata': 'https://www.wikidata.org/wiki/Q11053', 'display_name': 'RNA', 'level': 3, 'score': 0.10572603}, {'id': 'https://openalex.org/C41625074', 'wikidata': 'https://www.wikidata.org/wiki/Q176088', 'display_name': 'Membrane', 'level': 2, 'score': 0.077892154}, {'id': 'https://openalex.org/C2776330855', 'wikidata': 'https://www.wikidata.org/wiki/Q650187', 'display_name': 'Phosphatidylcholine', 'level': 4, 'score': 0.07302505}, {'id': 'https://openalex.org/C150903083', 'wikidata': 'https://www.wikidata.org/wiki/Q7108', 'display_name': 'Biotechnology', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C104317684', 'wikidata': 'https://www.wikidata.org/wiki/Q7187', 'display_name': 'Gene', 'level': 2, 'score': 0.0}, {'id': 'https://openalex.org/C2992907065', 'wikidata': 'https://www.wikidata.org/wiki/Q46220103', 'display_name': 'Inorganic phosphate', 'level': 3, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D001943', 'descriptor_name': 'Breast Neoplasms', 'qualifier_ui': 'Q000378', 'qualifier_name': 'metabolism', 'is_major_topic': True}, {'descriptor_ui': 'D010743', 'descriptor_name': 'Phospholipids', 'qualifier_ui': 'Q000378', 'qualifier_name': 'metabolism', 'is_major_topic': True}, {'descriptor_ui': 'D001943', 'descriptor_name': 'Breast Neoplasms', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004983', 'descriptor_name': 'Ethanolamines', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004983', 'descriptor_name': 'Ethanolamines', 'qualifier_ui': 'Q000378', 'qualifier_name': 'metabolism', 'is_major_topic': False}, {'descriptor_ui': 'D005997', 'descriptor_name': 'Glycerylphosphorylcholine', 'qualifier_ui': 'Q000378', 'qualifier_name': 'metabolism', 'is_major_topic': False}, {'descriptor_ui': 'D005997', 'descriptor_name': 'Glycerylphosphorylcholine', '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': 'D009682', 'descriptor_name': 'Magnetic Resonance Spectroscopy', 'qualifier_ui': 'Q000379', 'qualifier_name': 'methods', 'is_major_topic': False}, {'descriptor_ui': 'D009682', 'descriptor_name': 'Magnetic Resonance Spectroscopy', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D009711', 'descriptor_name': 'Nucleotides', 'qualifier_ui': 'Q000378', 'qualifier_name': 'metabolism', 'is_major_topic': False}, {'descriptor_ui': 'D009711', 'descriptor_name': 'Nucleotides', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010755', 'descriptor_name': 'Organophosphates', 'qualifier_ui': 'Q000378', 'qualifier_name': 'metabolism', 'is_major_topic': False}, {'descriptor_ui': 'D010755', 'descriptor_name': 'Organophosphates', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010710', 'descriptor_name': 'Phosphates', 'qualifier_ui': 'Q000378', 'qualifier_name': 'metabolism', 'is_major_topic': False}, {'descriptor_ui': 'D010710', 'descriptor_name': 'Phosphates', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010714', 'descriptor_name': 'Phosphatidylethanolamines', 'qualifier_ui': 'Q000378', 'qualifier_name': 'metabolism', 'is_major_topic': False}, {'descriptor_ui': 'D010714', 'descriptor_name': 'Phosphatidylethanolamines', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010743', 'descriptor_name': 'Phospholipids', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010758', 'descriptor_name': 'Phosphorus', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010767', 'descriptor_name': 'Phosphorylcholine', 'qualifier_ui': 'Q000378', 'qualifier_name': 'metabolism', 'is_major_topic': False}, {'descriptor_ui': 'D010767', 'descriptor_name': 'Phosphorylcholine', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 3, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1038/bjc.1991.122', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S62966998', 'display_name': 'British Journal of Cancer', 'issn_l': '0007-0920', 'issn': ['0007-0920', '1532-1827'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1972336', '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/2021535', '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://www.ncbi.nlm.nih.gov/pmc/articles/PMC1972336', '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}, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 13, 'referenced_works': ['https://openalex.org/W1484310689', 'https://openalex.org/W1486196032', 'https://openalex.org/W1584321404', 'https://openalex.org/W1818823647', 'https://openalex.org/W1980126937', 'https://openalex.org/W2014144604', 'https://openalex.org/W2017733935', 'https://openalex.org/W2021331185', 'https://openalex.org/W2021335430', 'https://openalex.org/W2023478620', 'https://openalex.org/W2034860523', 'https://openalex.org/W2037699317', 'https://openalex.org/W2087153832'], 'related_works': ['https://openalex.org/W3082331768', 'https://openalex.org/W2930163492', 'https://openalex.org/W2170862212', 'https://openalex.org/W2078495335', 'https://openalex.org/W2056783861', 'https://openalex.org/W2032875701', 'https://openalex.org/W2021682846', 'https://openalex.org/W1975571564', 'https://openalex.org/W1965990791', 'https://openalex.org/W1508583111'], 'abstract_inverted_index': {'An': [0], 'in': [1, 52, 82, 85, 100, 102, 118, 127], 'vivo': [2, 83], '31P': [3], 'NMR': [4, 47], 'spectrum': [5, 22, 54], 'was': [6, 97], 'obtained': [7, 37], 'from': [8, 30, 55, 88], 'each': [9, 21, 33, 56, 89], 'of': [10, 20, 24, 32, 34, 63, 95, 112], 'four': [11], 'human': [12], 'breast': [13], 'tumours.': [14], 'The': [15, 49, 70], 'phosphomonoester': [16, 50], 'and': [17, 66, 78, 84], 'phosphodiester': [18, 71, 96, 125], 'region': [19, 51, 72], 'consisted': [23], 'a': [25, 43, 67, 110], 'broad': [26], 'peak.': [27], 'Chemical': [28], 'extracts': [29], 'samples': [31], 'the': [35, 53, 81, 93, 101, 119, 124], 'tumours': [36], 'at': [38], 'resection': [39], 'were': [40], 'examined': [41], 'on': [42], 'high': [44], 'field': [45], 'strength': [46], 'system.': [48], 'extract': [57], 'resolved': [58, 73], 'into': [59, 74], 'three': [60], 'peaks': [61], 'consisting': [62], 'phosphocholine,': [64], 'phosphoethanolamine': [65], 'nucleoside': [68], 'monophosphate.': [69], 'two': [75], 'components,': [76], 'glycerophosphorylcholine': [77], 'glycerophosphorylethanolamine.': [79], 'Comparing': [80], 'vitro': [86, 103], 'data': [87], 'tumour': [90], 'showed': [91], 'that': [92], 'contribution': [94], 'much': [98], 'lower': [99], 'spectra.': [104], 'We': [105], 'believe': [106], 'this': [107], 'to': [108, 123], 'be': [109], 'consequence': [111], 'phospholipid,': [113], 'which': [114], 'would': [115], 'not': [116], 'appear': [117], 'aqueous': [120], 'extract,': [121], 'contributing': [122], 'peak': [126], 'vivo.': [128]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2032875701', 'counts_by_year': [{'year': 2022, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 2}, {'year': 2016, 'cited_by_count': 5}, {'year': 2015, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 3}, {'year': 2012, 'cited_by_count': 2}], 'updated_date': '2024-09-19T23:46:35.171181', 'created_date': '2016-06-24'}