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.
Bivins HA Jr, Cope DA, Newman RB, Eller DP.Bivins HA Jr, et al. Among authors: newman rb.Am J Obstet Gynecol. 1993 Oct;169(4):1070-3. doi: 10.1016/0002-9378(93)90056-o.Am J Obstet Gynecol. 1993.PMID: 8238122Clinical Trial.