title: Ectopic pregnancy following use of progestin-only ECPs.
authors.forename: James
authors.initials: J
authors.lastname: Trussell
authors.forename: Allison
authors.initials: A
authors.lastname: Hedley
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Raymond
mesh_terms: D003283:Contraceptives, Postcoital, Synthetic / Q000008:administration & dosage / Q000009:adverse effects*; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000008:administration & dosage / Q000009:adverse effects*; D010353:Patient Education as Topic; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000139:chemically induced* / Q000517:prevention & control; D011372:Progestins / Q000008:administration & dosage / Q000009:adverse effects*; D012307:Risk Factors
chemical_list: D003283:Contraceptives, Postcoital, Synthetic; D011372:Progestins; D016912:Levonorgestrel