2Caliskan E, Ozturk N, Dilbaz BO,etal. Analysis of risk factors associated with uterine perforation by intrauterine devices [J].Eur J Contracept R.epmd Health Care, 2003,8(3): 150 - 155.
2Caliskan E, Ozturk N, Dilbaz BO, et al. Analysis of risk factors associated with uterine perforation by intrauterine devices [J] . Eur J Contracept Repmd Health Care, 2003, 8 (3) : 150-155.
3Ikechebelu JI, Onwusulu DN. Missing IUD string: prevalence, diagnosis and retrieval in Nnewi, Nigeria [J] . NigerJMed, 2009, 18 (3) : 303-305.
4Rasheed SM, Abdelmonem AM. Complications among adolescents using copper intrauterine contraceptive devices [J] . Int J Gynaecol Obstet, 2011, 115 (3) : 269-72.
5Bennis H, Berraho K, Kouarty I, et al. Transuterine migration of intrauterine contraceptive devices [J] . Rev Med Liege, 2011, 66 (3) : 153-158.
6Onalan G, Mulayim B, Toprak T, et ol. Extrauterine displaced intrauterine devices: when should they be surgically removed [J] . Taiwan J Obstet Gynecol, 2009, 48 (4) : 415-416.
8Gill RS, Mok D, Hudson M, et al. Laparoscopic removal of an intraabdominal intrauterine device: case and systematic review [J] . Contraception, 2011, 25 (4) : 353-359.