Rheumatoid arthritis: types of course and prognosis.
D000367:Age Factors; D001172:Arthritis, Rheumatoid / Q000175:diagnosis* / Q000209:etiology; D001294:Attitude to Health; D001799:Blood Sedimentation; D005260:Female; D006801:Humans; D008297:Male; D009013:Morale; D012218:Rheumatoid Nodule / Q000175:diagnosis; D012737:Sex Factors