1. From GSK, Wavre, Belgium (I.D., J.-U.S.); GSK, Rockville, MD (J.H.K., W.P.); GSK, Munich, Germany (S.L., C.S.); the Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, NC (G.K.S.); and GSK, Waltham, MA (P.W., P.R.D.).