[1] Univ Toledo, Coll Med & Life Sci, 3000 Arlington Ave, Toledo, OH 43614 USA
[2] Univ Michigan, Dept Family Med, 1500 E Med Ctr Dr, Ann Arbor, MI 48109 USA
[3] Univ Michigan, Inst Healthcare Policy & Innovat, 2800 Plymouth Rd Bldg 16, Ann Arbor, MI 48109 USA
[4] Univ Michigan, Dept Obstet & Gynecol, 1500 E Med Ctr Dr,L4100 Womens Hosp, Ann Arbor, MI 48109 USA
[5] Univ Michigan, Med Sch, 1301 Catherine St, Ann Arbor, MI 48109 USA
[6] Univ Michigan, Dept Hlth Behav & Hlth Educ, Sch Publ Hlth, 415 Washington Hts, Ann Arbor, MI 48109 USA
[7] Univ Michigan, Natl Clinician Scholars Program, 2800 Plymouth Rd Bldg 16, Ann Arbor, MI 48109 USA