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.
Patten CA, Renner CC, Decker PA, O'Campo E, Larsen K, Enoch C, Offord KP, Hurt RD, Lanier A, Kaur J.Patten CA, et al.Matern Child Health J. 2008 Jul;12 Suppl 1(Suppl 1):30-6. doi: 10.1007/s10995-008-0331-7. Epub 2008 Mar 14.Matern Child Health J. 2008.PMID: 18340517Free PMC article.