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.
Burt SA, Krueger RF, McGue M, Iacono W.Burt SA, et al.Arch Gen Psychiatry. 2003 May;60(5):505-13. doi: 10.1001/archpsyc.60.5.505.Arch Gen Psychiatry. 2003.PMID: 12742872
Burt SA, McGue M, DeMarte JA, Krueger RF, Iacono WG.Burt SA, et al.Arch Gen Psychiatry. 2006 Aug;63(8):890-6. doi: 10.1001/archpsyc.63.8.890.Arch Gen Psychiatry. 2006.PMID: 16894065Free PMC article.
Burt SA, McGue M, Carter LA, Iacono WG.Burt SA, et al.Psychol Med. 2007 Jan;37(1):27-38. doi: 10.1017/S0033291706009020. Epub 2006 Oct 19.Psychol Med. 2007.PMID: 17049101Free PMC article.