S. Kafadar, A. Murat Aydin, H. Kafadar, C. Colak, and G. Burakgazi, “Evaluation of The Vertebral Artery Using Color Duplex Sonography in Patients with Vertebrobasilar Insuffiency Symptoms ”, annalsmedres, vol. 15, no. 3, pp. 0163–0168, May 2021.