1,953 articles
GAP trial
GAP trial (NCT02602600), liraglutide in women with angina and coronary microvascular dysfunction; open-label study of 33 non-diabetic overweight women at Bispebjerg Hospital; CFVR unchanged, only physical limitation score improved.
GARFIELD-AF study
GARFIELD-AF (Global Anticoagulant Registry in the FIELD–Atrial Fibrillation), NCT01090362: worldwide prospective registry of 57,262 patients with newly diagnosed non-valvular atrial fibrillation, 35 countries, 2009-2018, producing an integrated risk tool and real-world anticoagulation evidence.
Gary S. Kaplan
Gary S. Kaplan is an American physician-executive who was chairman and CEO of Virginia Mason Health System in Seattle from 2000 to 2020, known for the Virginia Mason Production System adapted from Toyota's methods.
GARY study
GARY (German Aortic Valve Registry, Deutsches Aortenklappenregister) is Germany's nationwide all-comers registry of aortic valve therapy, founded July 2010 by DGK and DGTHG, enrolling 180,000 patients, comparing SAVR and TAVI outcomes including higher matched 5-year mortality after TAVI.
Gatekeeping
Gatekeeping: a health-system arrangement in which a primary care physician or GP controls access to specialist care by referral. Also GP gatekeeping. Used in 31 of 38 OECD countries; reduces specialist use and costs but lowers patient satisfaction.
GDB study
GDB study (Generic Database, NCT00063063): NICHD Neonatal Research Network registry of very low birth weight and extremely preterm infants, begun 1987, over 91,000 enrollees, basis of 200+ publications and 27 clinical trials.
GDC study
GDC study, also called German Diabetes Study (GDS), NCT01055093: prospective observational cohort at the German Diabetes Center, Düsseldorf, following up to 2,000 adults with newly diagnosed type 1 or type 2 diabetes, aged 18-69, with metabolic, immunological, and organ phenotyping.
GEN-AFRICA study
GEN-AFRICA (NCT05685810) is a UK observational registry, sponsored by King's College Hospital NHS Trust, studying genetic and clinical determinants of kidney, cardiovascular, and metabolic disease in 3,029 people of African ancestry with HIV; key findings include APOL1 variant effects on acute kidney injury.
GenderGP
GenderGP: private online gender-affirming healthcare service founded 2015 by Dr Helen Webberley; subscription model (£220 setup, £35.99/28 days), WPATH-guideline HRT prescribing, no puberty blockers for under-18s; unregulated by CQC per NHS England.
Gene–environment interaction analysis
Gene–environment interaction analysis is a set of statistical methods testing whether an environmental exposure's effect on disease differs across genotypes, using case-control, case-only, and genome-wide designs.
GENEPSO study
GENEPSO (Gene Etude Prospective Sein Ovaire) is a French national prospective cohort, started in 2000, following BRCA1/2 and PALB2 mutation carriers at 29 clinics to study lifestyle and genetic cancer risk factors, linked to GEMO.
General Hospitals
General hospitals: broad-service hospitals providing medical, surgical, and maternity care across age groups, per WHO and MeSH definitions; contrasted with physician-owned specialty hospitals on cost, quality, and referrals.
General Medical Council
The General Medical Council (GMC) is the statutory regulator of doctors in the United Kingdom, established in 1858 and since 2024 also regulating physician associates.
Genetic association analysis
Genetic association analysis is a family of statistical methods testing whether genetic variants are associated with traits or diseases in populations, dominated since 2005 by the genome-wide association study (GWAS).
Genetic association study
A genetic association study tests whether genetic variants are statistically associated with a trait or disease, typically by comparing allele frequencies between cases and controls.
Genetic epidemiology
Genetic epidemiology, also called statistical genetics in its methods branch, studies inherited causes and distribution of disease in families and populations, using segregation, linkage, GWAS, and heritability estimation, with its dedicated journal founded 1984 and IGES in 1992.
Georg Bonne
Georg Bonne (1859–1945) was a German country doctor in Klein-Flottbek and Nienstedten on the Elbe, known as the "Engel von Nienstedten" and a lifelong campaigner for the river's cleanliness.
George A.O. Alleyne
George A.O. Alleyne is a Barbadian physician and public health leader who directed the Pan American Health Organization from 1995 to 2003, championing health equity.
George Demiris
George Demiris is a Greek-born biomedical and health informatics scientist at the University of Pennsylvania, known for research on smart homes, telehealth, and support for older adults and family caregivers.
George E. Thibault
George E. Thibault is an American physician and Harvard Medical School professor, best known as president of the Josiah Macy Jr. Foundation from 2008 to 2018.
George G. Reader
George G. Reader (1919–2005) was an American physician and public health educator who chaired Cornell's Department of Public Health from 1972 to 1992 and advised on Medicare.
George I. Lythcott
George I. Lythcott (1918–1995) was an American pediatrician and public health administrator who led smallpox eradication in West Africa and served as an Assistant Surgeon General.
George J. Isham
George J. Isham is an American physician executive who served as Chief Health Officer of HealthPartners in Minnesota and was elected to the National Academy of Medicine in 2014.
George Lister
George Lister is an American pediatrician-researcher, the Jean McLean Wallace Professor of Pediatrics at Yale School of Medicine, known for the National Infant Sleep Position studies on SIDS prevention.
Georgios Papanikolaou (Γεώργιος Νικολάου Παπανικολάου)
Georgios Papanikolaou (Γεώργιος Νικολάου Παπανικολάου), also George Nicholas Papanicolaou, Greek physician (1883–1962) who invented the Pap smear; reported vaginal-smear cancer diagnosis in 1928, validated it with Traut in 1943, and cut cervical cancer mortality.
Gerald E. Thomson
Gerald E. Thomson was an American nephrologist and Columbia professor who directed one of the nation's first large dialysis units and led national medical boards.
Gerald T. Perkoff
Gerald T. Perkoff (1926–2011) was an American physician and health services researcher, a University of Missouri professor elected to the National Academy of Medicine in 1978.
Gerardo Moreno
Gerardo Moreno is an American family-medicine physician and health-services researcher who chairs UCLA's Department of Family Medicine and was elected to the National Academy of Medicine in 2023.
Gerold Stucki
Gerold Stucki, born 1959, is a Swiss physician-scientist, professor at the University of Lucerne and director of Swiss Paraplegic Research, known for proposing functioning as a third health indicator alongside mortality and morbidity.
Gerontology
Gerontology is the scientific, interdisciplinary study of aging and older adulthood, covering biological, psychological, and social dimensions; unlike geriatrics, it is broad rather than a medical specialty.