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Fihn', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I40130261', 'display_name': 'American College of Physicians', 'ror': 'https://ror.org/03671qm90', 'country_code': 'US', 'type': 'other', 'lineage': ['https://openalex.org/I40130261']}, {'id': 'https://openalex.org/I4210146710', 'display_name': 'Mayo Clinic in Florida', 'ror': 'https://ror.org/03zzw1w08', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1330342723', 'https://openalex.org/I4210146710']}, {'id': 'https://openalex.org/I2802230104', 'display_name': 'Edward Hines, Jr. VA Hospital', 'ror': 'https://ror.org/02223wv31', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1322918889', 'https://openalex.org/I2799886695', 'https://openalex.org/I2802230104', 'https://openalex.org/I4210115976']}, {'id': 'https://openalex.org/I111979921', 'display_name': 'Northwestern University', 'ror': 'https://ror.org/000e0be47', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I111979921']}, {'id': 'https://openalex.org/I204866599', 'display_name': 'VA Palo Alto Health Care System', 'ror': 'https://ror.org/00nr17z89', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1322918889', 'https://openalex.org/I204866599', 'https://openalex.org/I2799886695', 'https://openalex.org/I4210125474']}, {'id': 'https://openalex.org/I79576946', 'display_name': 'University of Pennsylvania', 'ror': 'https://ror.org/00b30xv10', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I79576946']}, {'id': 'https://openalex.org/I1330342723', 'display_name': 'Mayo Clinic', 'ror': 'https://ror.org/02qp3tb03', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1330342723']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Stephan D. 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Gibbons', 'raw_affiliation_strings': ['From the American College of Physicians and University of Pennsylvania, Philadelphia, Pennsylvania', 'From the American College of Physicians and University of Pennsylvania, Philadelphia, Pennsylvania; Merck Institute of Aging and Health, Washington, DC; Veterans Affairs Puget Sound Health Care System, Seattle, Washington; Mayo Clinic, Rochester, Minnesota; Veterans Affairs Palo Alto Health Care System, Palo Alto, California; and Hines Veterans Administration Hospital and Northwestern University, Chicago, Illinois.', 'Hines Veterans Administration Hospital and Northwestern University, Chicago, Illinois.', 'Mayo Clinic, Rochester, Minnesota', 'Merck Institute of Aging and Health, Washington, DC', 'Veterans Affairs Palo Alto Health Care System, Palo Alto, California'], 'affiliations': [{'raw_affiliation_string': 'From the American College of Physicians and University of Pennsylvania, Philadelphia, Pennsylvania; Merck Institute of Aging and Health, Washington, DC; Veterans Affairs Puget Sound Health Care System, Seattle, Washington; Mayo Clinic, Rochester, Minnesota; Veterans Affairs Palo Alto Health Care System, Palo Alto, California; and Hines Veterans Administration Hospital and Northwestern University, Chicago, Illinois.', 'institution_ids': ['https://openalex.org/I40130261', 'https://openalex.org/I4210146710']}, {'raw_affiliation_string': 'Hines Veterans Administration Hospital and Northwestern University, Chicago, Illinois.', 'institution_ids': ['https://openalex.org/I2802230104', 'https://openalex.org/I111979921']}, {'raw_affiliation_string': 'Veterans Affairs Palo Alto Health Care System, Palo Alto, California', 'institution_ids': ['https://openalex.org/I204866599']}, {'raw_affiliation_string': 'From the American College of Physicians and University of Pennsylvania, Philadelphia, Pennsylvania', 'institution_ids': ['https://openalex.org/I40130261', 'https://openalex.org/I79576946']}, {'raw_affiliation_string': 'Mayo Clinic, Rochester, Minnesota', 'institution_ids': ['https://openalex.org/I1330342723']}, {'raw_affiliation_string': 'Merck Institute of Aging and Health, Washington, DC', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5112560529', 'display_name': 'Douglas K Owens', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I2802230104', 'display_name': 'Edward Hines, Jr. VA Hospital', 'ror': 'https://ror.org/02223wv31', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1322918889', 'https://openalex.org/I2799886695', 'https://openalex.org/I2802230104', 'https://openalex.org/I4210115976']}, {'id': 'https://openalex.org/I40130261', 'display_name': 'American College of Physicians', 'ror': 'https://ror.org/03671qm90', 'country_code': 'US', 'type': 'other', 'lineage': ['https://openalex.org/I40130261']}, {'id': 'https://openalex.org/I4210146710', 'display_name': 'Mayo Clinic in Florida', 'ror': 'https://ror.org/03zzw1w08', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1330342723', 'https://openalex.org/I4210146710']}, {'id': 'https://openalex.org/I111979921', 'display_name': 'Northwestern University', 'ror': 'https://ror.org/000e0be47', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I111979921']}, {'id': 'https://openalex.org/I204866599', 'display_name': 'VA Palo Alto Health Care System', 'ror': 'https://ror.org/00nr17z89', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1322918889', 'https://openalex.org/I204866599', 'https://openalex.org/I2799886695', 'https://openalex.org/I4210125474']}, {'id': 'https://openalex.org/I79576946', 'display_name': 'University of Pennsylvania', 'ror': 'https://ror.org/00b30xv10', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I79576946']}, {'id': 'https://openalex.org/I1330342723', 'display_name': 'Mayo Clinic', 'ror': 'https://ror.org/02qp3tb03', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1330342723']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Douglas K. Owens', 'raw_affiliation_strings': ['From the American College of Physicians and University of Pennsylvania, Philadelphia, Pennsylvania', 'From the American College of Physicians and University of Pennsylvania, Philadelphia, Pennsylvania; Merck Institute of Aging and Health, Washington, DC; Veterans Affairs Puget Sound Health Care System, Seattle, Washington; Mayo Clinic, Rochester, Minnesota; Veterans Affairs Palo Alto Health Care System, Palo Alto, California; and Hines Veterans Administration Hospital and Northwestern University, Chicago, Illinois.', 'Hines Veterans Administration Hospital and Northwestern University, Chicago, Illinois.', 'Mayo Clinic, Rochester, Minnesota', 'Merck Institute of Aging and Health, Washington, DC', 'Veterans Affairs Palo Alto Health Care System, Palo Alto, California'], 'affiliations': [{'raw_affiliation_string': 'Hines Veterans Administration Hospital and Northwestern University, Chicago, Illinois.', 'institution_ids': ['https://openalex.org/I2802230104', 'https://openalex.org/I111979921']}, {'raw_affiliation_string': 'From the American College of Physicians and University of Pennsylvania, Philadelphia, Pennsylvania; Merck Institute of Aging and Health, Washington, DC; Veterans Affairs Puget Sound Health Care System, Seattle, Washington; Mayo Clinic, Rochester, Minnesota; Veterans Affairs Palo Alto Health Care System, Palo Alto, California; and Hines Veterans Administration Hospital and Northwestern University, Chicago, Illinois.', 'institution_ids': ['https://openalex.org/I40130261', 'https://openalex.org/I4210146710']}, {'raw_affiliation_string': 'Veterans Affairs Palo Alto Health Care System, Palo Alto, California', 'institution_ids': ['https://openalex.org/I204866599']}, {'raw_affiliation_string': 'From the American College of Physicians and University of Pennsylvania, Philadelphia, Pennsylvania', 'institution_ids': ['https://openalex.org/I40130261', 'https://openalex.org/I79576946']}, {'raw_affiliation_string': 'Mayo Clinic, Rochester, Minnesota', 'institution_ids': ['https://openalex.org/I1330342723']}, {'raw_affiliation_string': 'Merck Institute of Aging and Health, Washington, DC', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5034700418', 'display_name': 'Sankey V. 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