Beksaç, M. Sinan, Emine Aydın, Mert Tuğral, and Ergün Karaağaoğlu. 2015. “An Obstetrics Index for the Assessment of Risk Levels of ‘High Risk Pregnancy’ Groups”. Gynecology Obstetrics &Amp; Reproductive Medicine 21 (1). Ankara, TR:10-13. https://www.gorm.com.tr/index.php/GORM/article/view/37.