Chaothawee, Lertlak, Kittipan Visudharom, Sucharath Warutama, Pongpan Poonsawat, Pradub Sukum, Sangrawee Sri-ngam, Paweena Mapinta, Busakol Ngam-muang, and Pornpanus Kaewchai. “Detection of Coronary Bypass Graft Patency by 256-Slice Multi-Detector Computed Tomography”. The Bangkok Medical Journal 2, no. 1 (September 20, 2011): 6. Accessed August 8, 2020. https://he02.tci-thaijo.org/index.php/bkkmedj/article/view/217709.