Before revision: Although they vary in particulars, polymyositis, dermatomyositis and inclusion body myositis are idiopathic inflammatory myopathies URL primarily characterized by chronic inflammation of human skeletal muscle tissueLundberg I. and Y-L Chung, 2000.
After revision: Although they vary in particulars, polymyositis, dermatomyositis and inclusion body myositis are idiopathic inflammatory myopathies (IIM) primarily characterized by chronic inflammation of human skeletal muscle tissueLundberg I. and Y-L Chung, 2000.