5[4]Eke N,Okpani Ao.Extrauterine translocated contraceptive device:a presentation of five cases and revisit of the enigmatic issues of iatrogenic perfornation and migration.Afr J Reprod Health,2003,7(3):117-123
6[5]Broso P R,Buffetti G.The IUD and uterine perforation.Miberva Ginecol,1994,46:505