1. NygrenK. and JohanssonE. D. B. (1973). Insertion of the endouterine Copper-T (TCu-200) immediately after first trimester legal abortion.Contraception,7, 299–306
2. AndolsekL. (1972). Experience with immediate postabortal insertions of the IUD. In:Family Planning Research Conference, A.Goldsmith and R.Snowden, eds., Excerpta Medica Foundation, Amsterdam, pp. 55–58
3. GoldsmithA., GoldbergR., EyzaguirreH., LuceroS. and LizanaL. (1972). IUD insertion in the immediate postabortal period. In:Family Planning Research Conference, A.Goldsmith and R.Snowden, eds., Excerpta Medica Foundation, Amsterdam, pp. 59–67
4. HueK., KwonH. Y., MichaelP. H. and WatsonW. B. (1974). A comparative study of the safety and efficacy of postabortal intrauterine device insertion.Am. J. Obstet. Gynecol.,118, 975–978
5. LarssonB. and HambergerL. (1975). Insertion of Copper-7 intrauterine devices in connection with induced abortions during the first trimester.Contraception,12, 69–76