title: Ectopic pregnancies following emergency levonorgestrel contraception.
authors.forename: Mira
authors.initials: M
authors.lastname: Harrison-Woolrych
mesh_terms: D044363:Contraception, Postcoital / Q000009:adverse effects*; D003280:Contraceptives, Oral, Synthetic / Q000009:adverse effects*; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000009:adverse effects*; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000209:etiology*
chemical_list: D003280:Contraceptives, Oral, Synthetic; D016912:Levonorgestrel