title: Challenges for biological standardization and control in the 21st century.
authors.affiliation: Center for Biologics Evaluation and Research, Bethesda, MD 20852, USA.
authors.forename: K C
authors.initials: KC
authors.lastname: Zoon
mesh_terms: D001688:Biological Products / Q000592:standards*; D005544:Forecasting; D006291:Health Policy / Q000639:trends*; D006801:Humans; D011786:Quality Control; D014944:World Health Organization
chemical_list: D001688:Biological Products