title: Plural actions of allergens. A problem in purification and standardization.
mesh_terms: D000485:Allergens / Q000302:isolation & purification / Q000494:pharmacology / Q000592:standards*; D000626:Aminopeptidases / Q000037:antagonists & inhibitors; D003174:Complement C1 Inactivator Proteins; D004305:Dose-Response Relationship, Drug; D004950:Esterases / Q000037:antagonists & inhibitors; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis; D005779:Immunodiffusion; D007073:Immunoglobulin E / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007167:Immunotherapy / Q000592:standards; D008968:Molecular Conformation; D012882:Skin Tests; D014361:Trypsin Inhibitors
chemical_list: D000485:Allergens; D003174:Complement C1 Inactivator Proteins; D007074:Immunoglobulin G; D014361:Trypsin Inhibitors; D007073:Immunoglobulin E; D004950:Esterases; D000626:Aminopeptidases