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.
Wiedmeier SE, Henry E, Baer VL, Stoddard RA, Eggert LD, Lambert DK, Christensen RD.Wiedmeier SE, et al. Among authors: christensen rd.Am J Perinatol. 2008 Jan;25(1):5-11. doi: 10.1055/s-2007-995220. Epub 2007 Nov 16.Am J Perinatol. 2008.PMID: 18027310