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.
Cnattingius S, Reilly M, Pawitan Y, Lichtenstein P.Cnattingius S, et al. Among authors: lichtenstein p.Am J Med Genet A. 2004 Nov 1;130A(4):365-71. doi: 10.1002/ajmg.a.30257.Am J Med Genet A. 2004.PMID: 15384082
Bulik CM, Sullivan PF, Tozzi F, Furberg H, Lichtenstein P, Pedersen NL.Bulik CM, et al. Among authors: lichtenstein p.Arch Gen Psychiatry. 2006 Mar;63(3):305-12. doi: 10.1001/archpsyc.63.3.305.Arch Gen Psychiatry. 2006.PMID: 16520436