title: An International Reference Preparation for human serum immunoglobulin E.
abstract: Following a collaborative assay by five laboratories in four countries, an International Reference Preparation for Human Serum Immunoglobulin E has been established by the World Health Organization and international units have been assigned to it.
mesh_terms: D001688:Biological Products / Q000592:standards; D006801:Humans; D007073:Immunoglobulin E; D007391:International Cooperation
chemical_list: D001688:Biological Products; D007073:Immunoglobulin E