Comparison of uterine concentrations of ethinyl estradiol and etonogestrel after use of a contraceptive vaginal ring and an oral contraceptive
| Autor: | Roumen, Frans J.M.E., Dieben, Thom O.M. |
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| Zdroj: | In Fertility and Sterility 2006 85(1):57-62 |
| Databáze: | ScienceDirect |
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