1. The Copper-Fix (Cu- Fix): a new concept in IUD technology;Wildemeersch;Adv. Contracept,1988
2. The FlexiGard® (Cu-Fix): Updated experience;Parewijck,1990
3. The copper-fix IUD: assessment of tissue reaction at anchor site;Coppens;Med. Sci. Res.,1989
4. Postremoval assessment of lUDs intrauterine position: an analysis of 566 removals with special reference to side effects;Kaivola,1988