RT Journal Article SR Electronic T1 Difficult IUD insertions JF Journal of Family Planning and Reproductive Health Care JO J Fam Plann Reprod Health Care FD British Medical Journal Publishing Group SP 134 OP 134 DO 10.1783/jfp.34.2.134d VO 34 IS 2 A1 Ailsa E Gebbie YR 2008 UL http://jfprhc.bmj.com/content/34/2/134.4.abstract AB