Authors:
Endrikat, J
Hite, R
Bannemerschult, R
Gerlinger, C
Schmidt, W
Citation: J. Endrikat et al., Multicenter, comparative study of cycle control, efficacy and tolerabilityof two low-dose oral contraceptives containing 20 mu g ethinylestradiol/100 mu g levonorgestrel and 20 mu g ethinylestradiol/500 mu g norethisterone, CONTRACEPT, 64(1), 2001, pp. 3-10