title: Potency variability in diagnostic allergen extracts: is there an optimal strength?
authors.forename: Richard W
authors.initials: RW
authors.lastname: Weber
mesh_terms: D000485:Allergens / Q000276:immunology; D000818:Animals; D002415:Cats; D031744:Cynodon / Q000737:chemistry / Q000276:immunology; D005060:Europe; D006023:Glycoproteins / Q000276:immunology; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis* / Q000276:immunology; D008800:Mexico; D010936:Plant Extracts / Q000276:immunology / Q000592:standards; D012680:Sensitivity and Specificity; D012882:Skin Tests / Q000592:standards; D013810:Therapeutic Equivalency; D014020:Tissue Extracts / Q000276:immunology / Q000592:standards; D014481:United States
chemical_list: D000485:Allergens; D006023:Glycoproteins; D010936:Plant Extracts; D014020:Tissue Extracts; C059296:Fel d 1 protein, Felis domesticus