Panthongviriyakul, Aunejit, Pattarapong Makarawate, Choowong Pongchaiyakul, Prapapan Tharaksa, and Temsiri Sripo. 2017. “Electrocardiogram Screening Tool for Risk Management Among Adult Patients in Outpatient Department”. Srinagarind Medical Journal 32 (2):157-62. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/85007.