title: The problem of penicillin allergy.
mesh_terms: D000917:Antibody Formation; D000921:Antibody-Producing Cells; D000937:Antigen-Antibody Reactions; D000941:Antigens; D055598:Chemical Phenomena; D002621:Chemistry; D004342:Drug Hypersensitivity / Q000175:diagnosis / Q000276:immunology*; D006801:Humans; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D010406:Penicillins / Q000009:adverse effects*; D012882:Skin Tests
chemical_list: D000941:Antigens; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D010406:Penicillins