PTERYGIUM AMONG VETERANS. AN EPIDEMIOLOGIC STUDY SHOWING A CORRELATION BETWEEN FREQUENCY OF PTERYGIUM AND DEGREE OF EXPOSURE OF ULTRAVIOLET IN SUNLIGHT.
D000382:Agricultural Workers' Diseases; D016021:Epidemiologic Studies; D004813:Epidemiology; D005843:Geography; D005853:Geriatrics; D006787:Hospitals, Veterans; D006801:Humans; D006813:Humidity; D009790:Occupations; D011625:Pterygium; D011647:Puerto Rico; D012423:Rural Health; D013223:Statistics as Topic; D013472:Sunlight; D014466:Ultraviolet Rays; D014481:United States; D014728:Veterans
AGRICULTURAL WORKERS' DISEASES; EPIDEMIOLOGY; GEOGRAPHY; GERIATRICS; HOSPITALS, VETERANS; HUMIDITY; OCCUPATIONS; PTERYGIUM; PUERTO RICO; RURAL HEALTH; STATISTICS; SUNLIGHT; ULTRAVIOLET RAYS; UNITED STATES