title: Imaging of the levonorgestrel implantable contraceptive device.
authors.forename: D M
authors.initials: DM
authors.lastname: Twickler
authors.forename: B E
authors.initials: BE
authors.lastname: Schwarz
mesh_terms: D004343:Drug Implants; D005260:Female; D005542:Forearm / Q000000981:diagnostic imaging*; D006801:Humans; D016912:Levonorgestrel / Q000008:administration & dosage*; D014463:Ultrasonography
chemical_list: D004343:Drug Implants; D016912:Levonorgestrel