Virasombat, N., N. Rattanawarawan, N. Netichaiphan, and B. Laohapoonrangsri. “Health Risk Assessment System Evaluation in Health Care Personnel of Sung Noen Hospital, Nakhon Ratchasima Province, 2007-2011”. Journal of Health Science of Thailand, vol. 21, no. 6, Dec. 2017, pp. 1119-31, https://thaidj.org/index.php/JHS/article/view/1197.