title: Parenteral estrogens for pregnancy prophylaxis.
mesh_terms: D003281:Contraceptives, Postcoital / Q000008:administration & dosage*; D004967:Estrogens / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D012189:Retrospective Studies
chemical_list: D003281:Contraceptives, Postcoital; D004967:Estrogens