title: IFCC: primary reference procedures for the measurement of catalytic conccentrations of enzymes--the new concept.
authors.forename: Klaus
authors.initials: K
authors.lastname: Lorentz
mesh_terms: D002384:Catalysis; D004798:Enzymes / Q000032:analysis*; D012680:Sensitivity and Specificity
chemical_list: D004798:Enzymes