[1] Oregon Hlth & Sci Univ, Sch Nursing, 3455 US Vet Hosp Rd, Portland, OR 97239 USA
[2] Univ Michigan, Sch Nursing, 400 North Ingalls Suite 3160, Ann Arbor, MI 48103 USA
[3] Univ Michigan, Dept Womens Studies, 400 North Ingalls Suite 3160, Ann Arbor, MI 48103 USA
[4] Univ Michigan, Dept Obstet & Gynecol, 400 North Ingalls Suite 3160, Ann Arbor, MI 48103 USA
[5] Zuyd Univ, Sch Publ Hlth & Primary Care Maastricht, CAPHRI, Univ Singel 60, NL-622 ER Maastricht, Netherlands
[6] Univ Michigan, Ctr Bioeth & Social Sci Med, Med Sch, 2800 Plymouth Rd, Ann Arbor, MI 48109 USA
[7] Zuyd Univ, Res Ctr Midwifery Sci, Univ Singel 60, NL-6229 ER Maastricht, Netherlands