title: The international contribution to the standardization of biological substances. I. Biological standards and the League of Nations 1921-1946.
authors.affiliation: Division of Communicable Diseases, World Health Organization, Geneva, Switzerland.
authors.forename: W C
authors.initials: WC
authors.lastname: Cockburn
mesh_terms: D001688:Biological Products / Q000266:history* / Q000592:standards*; D049673:History, 20th Century; D007390:International Agencies / Q000266:history*; D012015:Reference Standards
chemical_list: D001688:Biological Products