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.
1 Department of Obstetrics and Gynecology, Washington University School of Medicine, 660 South Euclid Avenue, Mail Stop: 8064-37-1005, St. Louis, MO 63110, USA. Electronic address: NelsonDM@wustl.edu.
2 Department of Obstetrics and Gynecology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239-3098, USA. Electronic address: MyattL@ohsu.edu.
1 Department of Obstetrics and Gynecology, Washington University School of Medicine, 660 South Euclid Avenue, Mail Stop: 8064-37-1005, St. Louis, MO 63110, USA. Electronic address: NelsonDM@wustl.edu.
2 Department of Obstetrics and Gynecology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239-3098, USA. Electronic address: MyattL@ohsu.edu.