RT Journal Article SR Electronic T1 Expulsion of Implanon® JF Journal of Family Planning and Reproductive Health Care JO J Fam Plann Reprod Health Care FD British Medical Journal Publishing Group SP 211 OP 211 DO 10.1783/147118907781004877 VO 33 IS 3 A1 Emily Gwinnell YR 2007 UL http://jfprhc.bmj.com/content/33/3/211.abstract AB