title: Biological standardization systems for allergenic extracts.
authors.affiliation: Development Department ALK-Abelló, Madrid, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Lombardero Vega
mesh_terms: D000485:Allergens / Q000737:chemistry* / Q000276:immunology; D002138:Calibration; D007202:Indicators and Reagents / Q000592:standards*; D012015:Reference Standards
chemical_list: D000485:Allergens; D007202:Indicators and Reagents