The problem of arthritis.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001168:Arthritis / Q000401:mortality*; D001172:Arthritis, Rheumatoid / Q000453:epidemiology*; D004185:Disability Evaluation; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis; D014481:United States