title: Biometrological uncertainty.
authors.forename: X
authors.initials: X
authors.lastname: Fuentes-Arderiu
authors.forename: B
authors.initials: B
authors.lastname: González de la Presa
mesh_terms: D002624:Chemistry, Clinical / Q000592:standards*; D007391:International Cooperation; D012015:Reference Standards; D015203:Reproducibility of Results