Chantawong สุพัตรา, Usupharach วรวุฒิ, Songsaengrit เบญจา, and Kittipanya-ngam พจีมาศ. “Validity of Pre-Operative and Post-Operative Cardiac Rehabilitation Questionnaires in Patients With Open Heart Surgery”. Srinagarind Medical Journal 36, no. 5 (October 4, 2021): 557–561. Accessed May 20, 2022. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/252556.