Erek E, Yalçınbaş Kenan Y, Türkekul Y, Ulukol A, Saygılı A, Sarıoğlu^{2 Tayyar C, et al. The use of Yaşargil neurovascular mini-clips for patent ductus arteriosus closure in premature infants. Turk Gogus Kalp Dama 2011;19:686-689}