References
- Wildemeersch D, Batár I, Affandi B, Andrade ATL, Wu S, Hu J, Cao X. The ‘frameless’ intrauterine system for long-term, reversible contraception: a review of 15 years of clinical experience. J Obstet Gynaecol Res 2003;29:160–169.
- Wildemeersch D. New frameless and framed intrauterine devices and systems – an overview. Contraception 2007;75:S82–S92.
- Wildemeersch D, Schacht E, Wildemeersch P. Performance and acceptability of intrauterine release of levonorgestrel with a miniature delivery system for hormonal substitution therapy, contraception, and treatment in peri- and postmenopausal women. Maturitas 2003;44:237–245.
- World Health Organization (WHO). Medical eligibility criteria for contraceptive use. Geneva, Switzerland: WHO; 2000.
- Janssen CA, Scholten PC, Heintz APM. A simple visual assessment technique to discriminate between menorrhagia and normal menstrual blood loss. Obstet Gynecol 1995;85:977–982.
- Newton J, Barnard G, Collins W. A rapid method for measuring menstrual blood loss using automatic extraction. Contraception 1977;16:269–282.
- Andrade ATL, Souza JP, Shaw Jr ST, Belsey EM, Rowe PJ. Menstrual blood loss and body iron stores in Brazilian women. Contraception 1991;43:241–249.
- R Development Core Team. R: a language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing; 2007. http://www.R-project.org.
- Tietze C, Lewit S. Recommended procedures for the statistical evaluation of intrauterine contraception. Stud Fam Plann 1973;4:35–42.
- Farley TMM. Life-table methods for contraceptive research. Stat Med 1986;5:475–489.
- Altman DG. Practical statistics for medical research. London: Chapman & Hall; 1995.
- Wildemeersch D. The force required to remove the frameless 0-suture anchoring system: comparison between pre- and postmenopausal women. Contraception 2004;69:513–515.
- Sivin I, Greenslade F, Schmidt F, Waldman SN. The copper T 380 intrauterine device ( a summary of scientific data. New York: The Population Council; 1992.
- Weiner E, Berg A, Johansson I. Copper intrauterine contraceptive devices in adolescent nulliparae. Br J Obstet Gynaecol 1978;85:204–206.
- Paterson H, Ashtin J, Harisson-Woolrych. A nationwide cohort study of the use of the levonorgestrel intrauterine device in New Zealand adolescents. Contraception 2009;79:433–438.
- Meirik O, Rowe PJ, Peregoudov O, Piaggio G, Petzold M; for the IUD Research Group at the UNDP/UNFPA/WHO/World Bank Special Programme of Research, Development and Research Training in Human. The frameless copper IUD (GyneFix) and the TCu380A IUD: results of an 8-year multicenter randomized comparative trial. Contraception 2009;80:133–141.
- Martinez F, Gimenez E, Hérnandez G, Alvarez D, Tejada M, Garcıa P, Ruiz C, Abril C, Izquierdo B, Avecilla A, et al (GESEG): Group for the study and follow-up of GyneFix® in Spain). Experience with GyneFix®: favorable acceptance of the intrauterine contraceptive implant with some limitations. Contraception 2002;66:215–220.
- Population Reports. IUDs – an update. Series B, Number 6. Baltimore: Population Reports, Johns Hopkins University; 1995.
- Tatum HJ, Connell EB. Intrauterine devices. In: Filshie M, Guillebaud J, editors. Contraception: science and practice. London: Butterworths; 1989. pp 144–171.
- Van Houdenhoven K, van Kaam KJAF, van Grootheest AC, Salemans THB, Dunselman GAJ. Uterine perforation in women using a levonorgestrel-releasing intrauterine system. Contraception 2006;73:257–260.
- Barnhart KT, Schreiber CA. Return to fertility following discontinuation of oral contraceptives. Fertil Steril 2009;91:659–663.
- Delbarge W, Batár I, Bafort M, Bonnivert J, Colmant C, Dhont M, Fonzé V, Gevers R, Janssens D, Lavalley Ph. Return to fertility in nulliparous and parous women after removal of the GyneFix® intrauterine contraceptive system. Eur J Contracept Reprod Health Care 2002;7:24–30.