Serum sickness; allergic reactions to piperazine; a report of three cases.
D006801:Humans; D006967:Hypersensitivity; D007154:Immune System Diseases; D000077489:Piperazine; D010879:Piperazines / Q000009:adverse effects*; D012713:Serum Sickness
D010879:Piperazines; D000077489:Piperazine
ALLERGY; PIPERAZINES/injurious effects