1. Akoz, I., Benk, D., Ayas, S. & Yakut, Y. (2003). 2000-2003 Yillari Arasindaki Co ul Gebeliklerde Obstetrik ve Perinatal Sonuclarimiz [Our obstetric and perinatal outcomes for multifetal pregnancies between 2000-2003]. Kartal E itim ve Arastirma Hastanesi Tip Dergisi, 14, 180- 183.
2. American Collage of Obstetricians and Gynecologists. (2004). Multiple gestation. Complicated twin, triplet, and high-order multifetal pregnancy (ACOG Practice Bullletin, 56). Washington, DC: American Collage of Obstetricians and Gynecologists.
3. Assisted reproductive technology in Europe, 2004: results generated from European registers by ESHRE
4. Management of Multiple Pregnancy: Prenatal Care???Part I
5. Bayhan, G., Yayla, M. Ozdo du, A. & Erden, A. C. (1998). 109 I kiz Ciftinde Do um Yonetemi ve Perinatal mortalite [Intrapartum management of 109 twin sets and perinatal mortality]. I stanbul Jinekoloji ve Obstetrik Dergisi, 2, 81-85.