@inproceedings{inproceedingsdf11ffab,
title   = {A three-year follow-up of women with endometriosis and pelvic pain (CPP) randomly assigned to a Levonorgestrel-releasing intrauterine system (LNG-IUS) or a depot GnRH analogue},
author = {Petta, C. and Ferriani, Rui Alberto and Abrão, M. and Hassan, D. and Rosa e Silva, Júlio César and Podgaec, S. and Bahamondes, L.},
year = {2008},
booktitle   = {World Congress on Endometriosis}
}