Medical Content Created by the Faculty of the Harvard Medical School
American College of Obstetricians and GynecologistsP.O. Box 96920Washington, DC 20090-6920Phone: 202-638-5577http://www.acog.org/
National Women's Health Information Center (NWHIC)Toll-Free: 1-800-994-9662TTY: 1-888-220-5446http://www.4woman.org/
Date Last Reviewed: 8/25/2011
Date Last Modified: 8/25/2011