Chowdhury, Rajib Nayan, Kazi Mohibur Rahman, Shariff Uddin Khan, Rabindranath Sarker, Shahriar Nabi, Mahmudur Rahman Siddiqui, and Quazi Deen Mohammad. 2011. “Digital Subtraction Angiogram (DSA) Is Superior to Duplex Ultrasound (USD) in Diagnosis of Extracranial Carotid Stenosis - A Comparative Study”. Journal of Medicine 12 (1):12-16. https://doi.org/10.3329/jom.v12i1.6926.