title: Vaginal progesterone for asymptomatic cervical shortening and the case for universal screening of cervical length.
authors.forename: C Andrew
authors.initials: CA
authors.lastname: Combs
mesh_terms: D005260:Female; D006801:Humans; D011247:Pregnancy; D047928:Premature Birth / Q000517:prevention & control*; D011374:Progesterone / Q000627:therapeutic use*; D011372:Progestins / Q000627:therapeutic use*
chemical_list: D011372:Progestins; D011374:Progesterone