TY - GEN AU - Margolis,D J TI - Dermatology of the lower extremity SN - 0889-5899 PY - 1993///1104 KW - Humans KW - Leg Ulcer KW - etiology KW - Necrobiosis Lipoidica KW - complications KW - Pyoderma Gangrenosum KW - Vasculitis N1 - Publication Type: Journal Article ER -