Enlace original:
https://openknowledge.worldbank.org/handle/10986/5108
Meirik, O.
,
Rowe, P. J.
,
Peregoudov, A.
,
Piaggio, G.
,
Petzold, M.
,
[ The Frameless Copper IUD (GyneFix) and the TCu380A IUD : Results of an 8-year Multicenter Randomized Comparative Trial , Contraception ]