Multicenter, comparative study of cycle control, efficacy and tolerability of two low-dose oral contraceptives containing 20 μg ethinylestradiol/100 μg levonorgestrel and 20 μg ethinylestradiol/500 μg norethisterone
| Autor: | Endrikat, J. *, Hite, R., Bannemerschult, R., Gerlinger, C., Schmidt, W. |
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| Zdroj: | In Contraception 2001 64(1):3-10 |
| Databáze: | ScienceDirect |
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