title: [Some problems on populizing emergency contraception in clinic].
authors.forename: Li-nan
authors.initials: LN
authors.lastname: Cheng
mesh_terms: D003267:Contraception / Q000379:methods*; D003281:Contraceptives, Postcoital / Q000008:administration & dosage*; D004630:Emergencies; D005260:Female; D006801:Humans; D011247:Pregnancy
chemical_list: D003281:Contraceptives, Postcoital