title: Author's reply: To PMID 25209926.
authors.affiliation: Department of Obstetrics and Gynecology, Tufts Medical Center and Tufts University School of Medicine, Boston, MA, USA.
authors.forename: E R
authors.initials: ER
authors.lastname: Norwitz
mesh_terms: D001724:Birth Weight; D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature / Q000188:drug therapy*; D011247:Pregnancy; D047928:Premature Birth / Q000517:prevention & control*; D011374:Progesterone / Q000627:therapeutic use*; D011372:Progestins / Q000627:therapeutic use*
chemical_list: D011372:Progestins; D011374:Progesterone