Osmanağaoğlu, M., M. Aksoy, C. İlhan, and R. Erin. “Ruptured Tubal Triplet Heterotopic Pregnancy After in Vitro Fertilisation: A Case Report”. Gynecology Obstetrics &Amp; Reproductive Medicine, vol. 17, no. 3, Dec. 2011, pp. 168-9, https://gorm.com.tr/index.php/GORM/article/view/317.