1. Modified insertion techniques for Copper 7, Copper T and ProgestasertR intrauterine contraceptive devices;Cooper;Contraception,1977
2. IUDs: An appropriate contraceptive for many women;Liskin;Population Reports, Series B,1982
3. Factors affecting the clinical performance of Nova T and Copper T 200;Allonen;Obstet & Gynecol,1984
4. The use-effectiveness of the Copper-T-200 in a simulated field trial;Timonen;Contraception,1974
5. Comparative performance of two copper-wired IUDs (ML Cu 250 and T Cu 200). Immediate postpartum and interval insertion;Thiery;Contracept Deliv Syst,1980