title: The difference that makes a difference?
authors.forename: Paul G
authors.initials: PG
authors.lastname: McDonough
mesh_terms: D005260:Female; D006801:Humans; D011374:Progesterone / Q000008:administration & dosage* / Q000031:analogs & derivatives*; D016032:Randomized Controlled Trials as Topic; D027724:Reproductive Techniques, Assisted; D013810:Therapeutic Equivalency
chemical_list: C400424:Crinone; D011374:Progesterone