title: Progesterone and preterm delivery--deja vu all over again.
authors.forename: Michael F
authors.initials: MF
authors.lastname: Greene
mesh_terms: D000077713:17 alpha-Hydroxyprogesterone Caproate; D005260:Female; D006801:Humans; D006908:Hydroxyprogesterones / Q000627:therapeutic use*; D007752:Obstetric Labor, Premature / Q000517:prevention & control*; D011247:Pregnancy; D045167:Progesterone Congeners / Q000627:therapeutic use*; D012306:Risk
chemical_list: D006908:Hydroxyprogesterones; D045167:Progesterone Congeners; D000077713:17 alpha-Hydroxyprogesterone Caproate