1. Katharine O. White is with the Department of Obstetrics and Gynecology, Boston Medical Center, Boston, MA, and the Boston University School of Medicine, Boston. Natasha M. Lerner is with the Department of Obstetrics and Gynecology, Boston Medical Center. Lisa LeRoy and Emily Decker are with Upstream USA, Boston. Jill Clark is with the Massachusetts Department of Public Health, Boston.