TY - RPRT TI - Peristomal pyoderma gangrenosum. AU - M Keltz AU - M Lebwohl AU - S Bishop PY - 1992 DO - 10.1016/0190-9622(92)70200-y UR - https://pubmed.ncbi.nlm.nih.gov/1387659/ ID - 1387659 ER -