1. University of Hawaii; Department of Obstetrics and Gynecology; 1319 Punahou Street Honolulu USA Hi 96826
2. University of North Carolina, School of Medicine; Obstetrics and Gynecology; CB#7570 Chapel Hill North Carolina USA 27599-7570
3. FHI 360; Clinical Sciences; P.O. Box 13950 Research Triangle Park North Carolina USA 27709