title: Lesson of the week--Norplant failure.
authors.forename: M
authors.initials: M
authors.lastname: Tasker
authors.forename: K
authors.initials: K
authors.lastname: Hattotuwa
mesh_terms: D000328:Adult; D003271:Contraceptive Agents, Female; D004343:Drug Implants; D005260:Female; D006801:Humans; D016912:Levonorgestrel; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000601:surgery
chemical_list: D003271:Contraceptive Agents, Female; D004343:Drug Implants; D016912:Levonorgestrel