DOI:
10.1055/s-00034916
Nervenheilkunde
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References
Teichmann A, Apter D, Emerich J, Greven K, Klasa-Mazurkiewicz D, Melis GB. et al.
Continuous, daily levonorgestrel/ethinyl estradiol vs. 21-day, cyclic levonorgestrel/ethinyl estradiol: efficacy, safety and bleeding in a randomized, open-label trial.
Contraception 2009;
80 (06) 504-11.
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