1. Department of Medicine, Division of Infectious Diseases, Perelman School of Medicine, University of Pennsylvania , Philadelphia, Pennsylvania , USA
2. Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Alpert Medical School of Brown University , Providence, Rhode Island , USA
3. Francois-Xavier Bagnoud Center, School of Nursing, Rutgers, The State University of New Jersey , Newark, New Jersey , USA
4. Mother and Child Alliance , Chicago, Illinois , USA
5. Department of Family Medicine & Community Health, University of Kansas Medical Center , Kansas City, Kansas , USA
6. Division of HIV Prevention, National Center for HV, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention , Atlanta, Georgia , USA