Watcharathanakij, Sawaeng, and Wannaporn Wattanawong. 2022. “Validity of Data in Thai Cancer-Based Registry Compared With Original Data from One Tertiary Care Hospital Database”. The Journal of Chulabhorn Royal Academy 4 (2). Bangkok, Thailand:78-90. https://he02.tci-thaijo.org/index.php/jcra/article/view/252226.