Contraceptive efficacy, subject acceptability (cycle control, side-effects, acne score and weight gain) and blood pressure of a monophasic oral contraceptive containing 30 μg ethinyl estradiol plus 150 μg desogestrel (Marvelon) were assessed in an open-label 6-cycle multicenter study in Argentina (7 centers) and Venezuela (5 centers). Of the 407 participating women, 389 (95.6%) completed six cycle...... hiện toàn bộ