[Collagen diseases from the aspect of internal medicine].
D000293:Adolescent; D000328:Adult; D000368:Aged; D001168:Arthritis / Q000150:complications; D003095:Collagen Diseases / Q000150:complications / Q000175:diagnosis; D003882:Dermatomyositis / Q000150:complications; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007388:Internal Medicine; D008180:Lupus Erythematosus, Systemic; D008297:Male; D008875:Middle Aged; D010488:Polyarteritis Nodosa / Q000150:complications