[Current concept of collagen diseases].
D003095:Collagen Diseases; D003880:Dermatology; D003882:Dermatomyositis; D004893:Erythema Nodosum; D006801:Humans; D007388:Internal Medicine; D010336:Pathology; D010488:Polyarteritis Nodosa; D012595:Scleroderma, Systemic