Songkiatkawin T, Jiratham-opas J, Ditsuwan V, Ditsuwan T, Rammasut D, Suwanchot P, Chat S. Double iFOB Test and Single iFOB Test Positive for Colorectal Cancer Screening:An Experience in Songkhla Province, Thailand. Thai J Surg [internet]. 2017 Mar. 30 [cited 2026 Oct. 2];38(1):7-13. available from: https://he02.tci-thaijo.org/index.php/ThaiJSurg/article/view/219941