1. Complete and Partial Uterine Perforation and Embedding following Insertion of Intrauterine Deives. I. Classification, Complications, Mechanism, Incidence, and Missing String
2. Appendix perforation by an intrauterine contraceptive device
3. Key TC, Kreutner AK. Gastrointestinal complications of modern intrauterine devices. Obstet Gynecol 1980;55:239-244.
4. Heartwell SF, Schlesselman S. Risk of uterine perforation among users of intrauterine devices. Obstet Gynecol 1983;61:31-36.
5. Treisser A, Colau JC. Causes, diagnosis and treatment of uterine perforations by intrauterine devices. J Gynecol Obstet Biol Reprod (Paris) 1978;7:837-847.