Evaluation of the efectiveness and acceptability of the diaphragm as contraceptive method - Melo, N. R.; Burgos, R. M.; Pompei, L. M.; Elluf, M. L.; Nicolau, P.; Ramos, Laudelino de Oliveira; Pinotti, José Aristodemo (FIGO World Congress of Gynecology and Obstetrics, 2000)