An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
van Doormaal JJ, Smit N, Koopman BJ, van der Molen JC, Wolthers BG, Doorenbos H.van Doormaal JJ, et al. Among authors: koopman bj.Clin Chim Acta. 1989 May 31;181(3):273-9. doi: 10.1016/0009-8981(89)90233-7.Clin Chim Acta. 1989.PMID: 2758681
Koopman BJ, Wolthers BG, van der Molen JC, van der Slik W, Waterreus RJ, van Spreeken A.Koopman BJ, et al.J Inherit Metab Dis. 1988;11(1):56-75. doi: 10.1007/BF01800057.J Inherit Metab Dis. 1988.PMID: 3128689