title: Ectopic pregnancy following levonorgestrel emergency contraception.
authors.forename: Fabio R
authors.initials: FR
authors.lastname: Cabar
authors.forename: Pedro P
authors.initials: PP
authors.lastname: Pereira
authors.forename: Marcelo
authors.initials: M
authors.lastname: Zugaib
mesh_terms: D000020:Abortifacient Agents, Nonsteroidal / Q000627:therapeutic use; D044363:Contraception, Postcoital; D003280:Contraceptives, Oral, Synthetic / Q000627:therapeutic use*; D005187:Fallopian Tubes / Q000601:surgery*; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000627:therapeutic use*; D008727:Methotrexate / Q000627:therapeutic use; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000188:drug therapy / Q000601:surgery*; D017211:Treatment Failure
chemical_list: D000020:Abortifacient Agents, Nonsteroidal; D003280:Contraceptives, Oral, Synthetic; D016912:Levonorgestrel; D008727:Methotrexate