1 Stanford University School of Medicine, Palo Alto, California. Electronic address: zdhanani@stanford.edu.
2 Stanford University School of Medicine, Palo Alto, California; Department of Obstetrics, Gynecology and Women's Health, University of Minnesota School of Medicine, Minneapolis, Minnesota.
3 Department of Ob/Gyn, Stanford University School of Medicine, Palo Alto, California.
4 Human Immune Monitoring Center, Stanford School of Medicine, Stanford, California.