South Africa: patterns of rheumatic disease.
D000293:Adolescent; D000328:Adult; D001172:Arthritis, Rheumatoid / Q000453:epidemiology; D005271:Femur Head Necrosis / Q000453:epidemiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000453:epidemiology; D012216:Rheumatic Diseases / Q000453:epidemiology*; D012214:Rheumatic Heart Disease / Q000453:epidemiology; D013019:South Africa