title: Early vaginal bleeding, young maternal age, and preterm delivery.
authors.forename: C
authors.initials: C
authors.lastname: Stevens-Simon
authors.forename: E R
authors.initials: ER
authors.lastname: McAnarney
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D014592:Uterine Hemorrhage / Q000209:etiology*