REFERENCES
- Family Planning Association of New South Wales. Intrauterine devices. Fam Plann Inf Serv 1978;1:1–50.
- Graefenberg E. Silk als antikonzipiens. In Bendix K, ed. Geburtenregelung: Vortrage und Verhandlungen des Arztekursus vom 28–30. Berlin: Selbstverlag 1929.
- Thiery M. Intrauterine contraception: From silver ring to intrauterine contraceptive implant. Eur J Obstet Gynecol Reprod Biol 2000;90:145–52.
- Wokoma TT, Adum VL, Gbolade BA. Retained fetal bones masquerading as an intrauterine device with missing threads. Eur J Contracept Reprod Health Care 2010;15:213–5.
- Tulandi T, Al-Sunaidi M, Arseneau J, et al. Calcified tissue of fetal origin in utero. Fertil Steril 2008; 89:217–8.
- Ghaffari F, Tehraninejad ES, Kiani K. Retained fetal bone in infertile patients: Two case reports. Int J Fertil Steril 2009;3:153–4.
- Makris N, Stefanidis K, Loutradis D, et al. The incidence of retained fetal bone revealed in 2000 diagnostic hysteroscopies. JSLS 2006;10:76–7.
- Parente RC, Patriarca MT, de Moura Neto RS, et al. Genetic analysis of the cause of endometrial osseous metaplasia. Obstet Gynecol 2009;114:1103–9.
- Wolff EF, Wolff AB, Hongling Du, et al. Demonstration of multipotent stem cells in the adult human endometrium by in vitro chondrogenesis. Reprod Sci 2007;14:524–33.
- Onderoglu LS, Yarali H, Gultekin M, Katlan D. Endometrial osseous metaplasia: an evolving cause of secondary infertility. Fertil Steril 2008;90:2013.e9–11.