title: Issues in allergen extract mixes.
authors.affiliation: Department of Medicine, National Jewish Center for Immunology and Respiratory Medicine, Denver, Colorado 80206.
authors.forename: H S
authors.initials: HS
authors.lastname: Nelson
mesh_terms: D000485:Allergens / Q000276:immunology / Q000494:pharmacology / Q000627:therapeutic use*; D003429:Cross Reactions; D003888:Desensitization, Immunologic; D006801:Humans; D010936:Plant Extracts / Q000494:pharmacology / Q000627:therapeutic use*
chemical_list: D000485:Allergens; D010936:Plant Extracts