What joint aspirations can tell you.
D016918:Arthritis, Reactive / Q000175:diagnosis; D001172:Arthritis, Rheumatoid / Q000175:diagnosis; D006073:Gout / Q000175:diagnosis; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis*; D013582:Synovial Fluid / Q000166:cytology