Unexpected prevalence of knee-joint effusions in the population of Sudbury.
D000293:Adolescent; D000328:Adult; D001172:Arthritis, Rheumatoid / Q000453:epidemiology; D002062:Bursitis / Q000453:epidemiology; D005260:Female; D006073:Gout / Q000453:epidemiology; D006801:Humans; D007592:Joint Diseases / Q000453:epidemiology*; D007718:Knee Injuries; D007719:Knee Joint; D008297:Male; D008404:Massachusetts; D009765:Obesity; D010003:Osteoarthritis / Q000453:epidemiology; D012785:Shoulder Joint; D013582:Synovial Fluid / Q000032:analysis*