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Combined oral contraceptive pill for primary dysmenorrhoea.
Schroll JB, Black AY, Farquhar C, Chen I. Schroll JB, et al. Cochrane Database Syst Rev. 2023 Jul 31;7(7):CD002120. doi: 10.1002/14651858.CD002120.pub4. Cochrane Database Syst Rev. 2023. PMID: 37523477 Free PMC article.