[1] Wayne State Univ, Sch Med, Dept Obstet & Gynecol, Detroit, MI 48201 USA
[2] Karmanos Canc Inst, Detroit, MI USA
[3] Univ Washington, Dept Obstet & Gynecol, Seattle, WA 98195 USA
[4] Univ Michigan, Ctr Comprehens Canc, Dept Obstet & Gynecol, Ann Arbor, MI 48109 USA
[5] Henry Ford Hosp, Dept Obstet & Gynecol, Detroit, MI USA