TY - RPRT TI - Hypersensitivity vasculitis associated with piperazine therapy. AU - M Balzan AU - J M Cacciottolo PY - 1994 DO - 10.1111/j.1365-2133.1994.tb08472.x UR - https://pubmed.ncbi.nlm.nih.gov/8043407/ ID - 8043407 ER -