References
- Van Houdenhoven K, van Kaam K JAF, van Grootheest A C, et al. Uterine perforations in women using the levonorgestrel-releasing intrauterine system. Contraception 2006; 73: 257–260
- IPPF. Medical and service delivery guidelines for sexual and reproductive health services3rd edn. 2004, Available at: http://www.maqweb.org/iudtoolkit/policies_guidelines/ippfguidelines.pdf