[1] Univ Calif San Francisco, Dept Obstet Gynecol & Reprod Sci, Bixby Ctr Global Reprod Hlth, Adv New Stand Reprod Hlth ANSIRH, Oakland, CA 94612 USA
[2] Univ Calif Los Angeles, Dept Community Hlth Sci, Fielding Sch Publ Hlth, Los Angeles, CA 90095 USA
[3] UCLA Ctr Study Women, Los Angeles, CA 90095 USA
[4] Univ Calif Berkeley, Sch Publ Hlth, Bixby Ctr Populat Hlth & Sustainabil, Berkeley, CA 94720 USA
[5] Univ Calif San Francisco, Hastings Coll Law, UCSF UC Hastings Consortium Law Sci & Hlth Policy, San Francisco, CA 94102 USA
[6] Univ Calif San Francisco, Dept Obstet Gynecol & Reprod Sci, San Francisco Gen Hosp, San Francisco, CA 94105 USA