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.
Papassotiropoulos A, Lewis HD, Bagli M, Jessen F, Ptok U, Schulte A, Shearman MS, Heun R.Papassotiropoulos A, et al. Among authors: ptok u.Neuroreport. 2002 Jul 19;13(10):1291-4. doi: 10.1097/00001756-200207190-00015.Neuroreport. 2002.PMID: 12151789
Kölsch H, Ptok U, Mohamed I, Schmitz S, Rao ML, Maier W, Heun R.Kölsch H, et al. Among authors: ptok u.Am J Med Genet B Neuropsychiatr Genet. 2003 Aug 15;121B(1):128-30. doi: 10.1002/ajmg.b.20043.Am J Med Genet B Neuropsychiatr Genet. 2003.PMID: 12898587
Ptok U, Papassotiropoulos A, Maier W, Heun R.Ptok U, et al.Int Psychogeriatr. 2000 Dec;12(4):445-51. doi: 10.1017/s1041610200006566.Int Psychogeriatr. 2000.PMID: 11263711
Ptok U, Papassotiropoulos A, Maier W, Heun R.Ptok U, et al.Eur Psychiatry. 2001 Apr;16(3):157-61. doi: 10.1016/s0924-9338(01)00557-0.Eur Psychiatry. 2001.PMID: 11353593