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.
Sanders CL, Lucas MJ.Sanders CL, et al. Among authors: lucas mj.Obstet Gynecol Clin North Am. 2001 Sep;28(3):593-600, vii. doi: 10.1016/s0889-8545(05)70220-5.Obstet Gynecol Clin North Am. 2001.PMID: 11512503Review.
Davis LE, Lucas MJ, Hankins GD, Roark ML, Cunningham FG.Davis LE, et al. Among authors: lucas mj.Am J Obstet Gynecol. 1989 Jan;160(1):63-70. doi: 10.1016/0002-9378(89)90088-4.Am J Obstet Gynecol. 1989.PMID: 2912104