title: International Federation of Clinical Chemistry IFCC. IFCC recommendation--theory of reference values. Part 4. Control of analytical variation in the production, transfer and application of reverence values.
authors.affiliation: Department of Clinical Chemistry, Rikshospitalet, Oslo, Norway.
authors.forename: H E
authors.initials: HE
authors.lastname: Solberg
authors.forename: D
authors.initials: D
authors.lastname: Stamm
mesh_terms: D002624:Chemistry, Clinical / Q000592:standards*; D006801:Humans; D011786:Quality Control; D012016:Reference Values