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Shehata, N. (2019). Retraction notice to: "Calcium versus oral contraceptive pills containing drospirenone for the treatment of mild to moderate premenstrual syndrome: A double blind randomized placebo controlled trial" [Eur J Obstet Gynecol Reprod Biol (2016) 100–104]. European journal of obstetrics, gynecology, and reproductive biology. pp. 387-. [Online].