1. Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, Oregon, USA.
2. Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, Virginia, USA.
3. Department of Obstetrics and Gynecology, Columbia University, New York, New York, USA.
4. Essential Access Health, Los Angeles, California, USA.
5. TherapeuticsMD, Boca Raton, Florida, USA.