Eungtrakul, Narong, Phaiboon Pensuwan, Whachara Eamratasameekool, Punnee Saengin, and Saipin Ponsri. “Screening Colorectal Cancer in High Risk Group at Roi-Et Province”. Journal of Health Science of Thailand 22, no. 4 (December 7, 2017): 638–649. Accessed January 8, 2026. https://thaidj.org/index.php/JHS/article/view/885.