[1] NCI, Div Canc Epidemiol & Genet, 9609 Med Ctr Dr,Room 6-E448, Bethesda, MD 20892 USA
[2] Kaiser Permanente Northern Calif, Dept Adult & Family Med, Dept Obstet & Gynecol, San Leandro, CA USA
[3] Boston Univ, Sch Med, Boston Med Ctr, Dept Obstet & Gynecol, Boston, MA 02118 USA
[4] Univ Oklahoma, Dept Obstet & Gynecol, Oklahoma City, OK USA
[5] Univ Oklahoma, Tulsa Canc Inst, Sch Community Med, Tulsa, OK USA
[6] Univ Colorado, Dept Obstet & Gynecol, Anschutz Med Campus, Aurora, CO USA
[7] Rutgers New Jersey Med Sch, Dept Obstet Gynecol & Womens Hlth, Newark, NJ USA
[8] Univ South Carolina, Sch Med, Dept Obstet & Gynecol, Dept Family & Prevent Med, Columbia, SC USA
[9] Univ New Mexico, Sch Med, Dept Obstet & Gynecol, Albuquerque, NM 87131 USA
[10] Univ Alabama Birmingham, Sch Med, Dept Obstet & Gynecol, Div Gynecol Oncol, Birmingham, AL USA
[11] Washington Univ, Sch Med, Dept Obstet & Gynecol, Div Gynecol Oncol, St Louis, MO 63110 USA