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.
Wals M, Reichart CG, Hillegers MH, Van Os J, Verhulst FC, Nolen WA, Ormel J.Wals M, et al. Among authors: hillegers mh.J Am Acad Child Adolesc Psychiatry. 2003 Sep;42(9):1116-21. doi: 10.1097/01.CHI.0000070242.24125.78.J Am Acad Child Adolesc Psychiatry. 2003.PMID: 12960712
Wals M, van Os J, Reichart CG, Hillegers MH, Ormel J, Verhulst FC, Nolen WA.Wals M, et al. Among authors: hillegers mh.Am J Med Genet B Neuropsychiatr Genet. 2004 May 15;127B(1):35-41. doi: 10.1002/ajmg.b.20165.Am J Med Genet B Neuropsychiatr Genet. 2004.PMID: 15108177