“…Characteristic, although nonspecific lesions were described in skin (40,161), skeletal muscle (40,42,161,162), myocardium (163,164), gastro· Clinical and laboratory features.-The most common symptoms consist of weakness, muscular . stiffness, tenderness and wasting (symmetrical dis tribution in shoulder or pelvic girdle), any one of an extraordinary variety of skin eruptions, edema, and fever.…”