RT Journal Article SR Electronic T1 Implant and adolescents JF BMJ Sexual & Reproductive Health JO BMJ Sex Reprod Health FD British Medical Journal Publishing Group SP bmjsrh-2020-200631 DO 10.1136/bmjsrh-2020-200631 A1 Elise D. Berlan YR 2020 UL http://jfprhc.bmj.com/content/early/2020/07/28/bmjsrh-2020-200631.abstract AB