1. New insights on the mode of action of intrauterine contraceptive devices in women;Alvarez;Fertil Steril,1988
2. Incidence of morbidity and mortality with IUD in situ in the 1980s and 1990s;Atrash,1994
3. Recovery of fertility after use of the levomorgesrel 20 mcg/d or copper T 380Ag intrauterine device;Belhadj;Contraception,1986
4. Association between intrauterine device and pelvic inflammatory disease;Burkman;Obstet Gynecol,1981
5. Current trends: IUD safety. Report of a nationwide physician survey—editorial note—1997. IUD safety;Centers for Disease Control and Prevention (CDC);MMWR Morb Mortal Wkly Rep,1996