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.
Chasan-Taber L, Schmidt MD, Pekow P, Sternfeld B, Manson J, Markenson G.Chasan-Taber L, et al.Matern Child Health J. 2007 Jul;11(4):353-63. doi: 10.1007/s10995-007-0201-8. Epub 2007 Mar 8.Matern Child Health J. 2007.PMID: 17345155