Patrakitkomjorn, Siriporn, Natthapol Phaichob, Limthong Promdee, Yaovalak Teerajetgul, and Wichai Assawapak. 2011. “Upper Normal Levels in Biochemical Tests With a Trend of Abnormality in Local Police Staffs”. Archives of Allied Health Sciences 23 (2). Khon Kaen, Thailand:209-12. https://he01.tci-thaijo.org/index.php/ams/article/view/66244.