RT Journal Article SR Electronic T1 DBH gene variants that cause low plasma dopamine β hydroxylase with or without a severe orthostatic syndrome JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP e38 OP e38 DO 10.1136/jmg.2003.009282 VO 41 IS 4 A1 Deinum, J A1 Steenbergen-Spanjers, G C H A1 Jansen, M A1 Boomsma, F A1 Lenders, J W M A1 van Ittersum, F J A1 Hück, N A1 van den Heuvel, L P A1 Wevers, R A YR 2004 UL http://jmg.bmj.com/content/41/4/e38.abstract AB