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].
作者信息
Shehata Nesreen A A
机构信息
Department of Obstetrics and Gynecology, Faculty of Medicine, Beni-Suef University, Egypt.