title: Polymyositis and dermatomyositis: clinical problems.
mesh_terms: D003095:Collagen Diseases / Q000150:complications; D003882:Dermatomyositis / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D009157:Myasthenia Gravis / Q000150:complications; D009220:Myositis / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D009369:Neoplasms / Q000150:complications; D011241:Prednisone / Q000627:therapeutic use; D013945:Thymoma / Q000150:complications; D013953:Thymus Neoplasms / Q000150:complications
chemical_list: D011241:Prednisone