[1] Univ Minnesota, Dept Obstet Gynecol & Womens Hlth, Minneapolis, MN USA
[2] Univ Minnesota, Med Sch, Minneapolis, MN USA
[3] Univ Minnesota, Biostat Core, Masonic Canc Ctr, Minneapolis, MN USA
[4] Planned Parenthood North Cent States, St Paul, MN USA
[5] 606 24th Ave S Ste 303, Minneapolis, MN 55454 USA
[6] Univ Calif Irvine, Dept Obstet & Gynecol, Irvine, CA USA
[7] Case Western Reserve Univ, MetroHlth Med Ctr, Dept Obstet & Gynecol, Cleveland, OH USA
[8] Allina Hlth, Minneapolis, MN USA