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.
Hsu Y, Chen L, Huebner M, Ashton-Miller JA, DeLancey JO.Hsu Y, et al. Among authors: huebner m.Obstet Gynecol. 2006 Oct;108(4):879-83. doi: 10.1097/01.AOG.0000233153.75175.34.Obstet Gynecol. 2006.PMID: 17012449