title: [Intrauterine spiral and contraceptive implants are best for prevention of unwanted pregnancies].
authors.forename: Trine
authors.initials: T
authors.lastname: Aarvold
authors.forename: Britt-Ingjerd
authors.initials: BI
authors.lastname: Nesheim
mesh_terms: D003271:Contraceptive Agents, Female / Q000008:administration & dosage / Q000592:standards*; D003274:Contraceptive Devices, Female / Q000592:standards*; D004343:Drug Implants / Q000592:standards*; D005260:Female; D006801:Humans; D007436:Intrauterine Devices, Medicated / Q000592:standards*; D011247:Pregnancy; D049168:Pregnancy, Unplanned; D011275:Pregnancy, Unwanted
chemical_list: D003271:Contraceptive Agents, Female; D004343:Drug Implants