TrialThe journal of family planning and reproductive health care2012

Efficacy of ethinylestradiol 20 μg/drospirenone 3 mg in a flexible extended regimen in women with moderate-to-severe primary dysmenorrhoea: an open-label, multicentre, randomised, controlled study.

Thomas Strowitzki et al.PubMed ↗Full text ↗Publisher ↗

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