Blaabjerg O, Elg P, Gerhardt W, Hellsing K, Olafsdottir E, Penttilä I, Hyltoft Petersen P, Steensland H, Uldall A. 6.2.4 A Nordic Reference Serum Suitable for Use as Trueness Control in the Clinical Routine Laboratory. ujms [Internet]. 1993Sep.1 [cited 2024Apr.26];98(3):405-12. Available from: https://ujms.net/index.php/ujms/article/view/7503