Abstract
Grossman, D; White, K
Grossman, D (reprint author), Univ Calif San Francisco, Advancing New Stand Reprod Hlth, Bixby Ctr Global Reprod Hlth, San Francisco, CA 94143 USA.; Grossman, D (reprint author), Univ Calif San Francisco, Dept Obstet Gynecol & Reprod Sci, San Francisco, C
NEW ENGLAND JOURNAL OF MEDICINE, 2018; 379 (16): 1491