[1] Univ Michigan, Dept Obstet & Gynecol, 1500 E Med Ctr Dr, Ann Arbor, MI 48109 USA
[2] Univ Michigan, Inst Healthcare Policy & Innovat, 2800 Plymouth Rd, Ann Arbor, MI 48109 USA
[3] Univ Michigan, Dept Emergency Med, 1500 E Med Ctr Dr, Ann Arbor, MI 48109 USA
[4] Univ Michigan, Dept Surg, 1500 E Med Ctr Dr, Ann Arbor, MI 48109 USA
[5] Univ Michigan, Dept Obstet & Gynecol, Div Urogynecol, Ann Arbor, MI 48109 USA
[6] Univ Wisconsin, Dept Obstet & Gynecol, Div Gynecol Oncol, 750 Highland Ave, Madison, WI 53705 USA
[7] Univ Michigan, Dept Obstet & Gynecol, Div Gynecol Oncol, 1500 E Med Ctr Dr, Ann Arbor, MI 48109 USA