Sirivarasai, Jintana, Sming Kaojarern, Winai Wananukul, and Preera Srisomrarn. 2003. “Blood Cadmium and Cigarette Smoking in Non-occupationally Exposed People”. Archives of Allied Health Sciences 15 (1). Khon Kaen, Thailand:8-16. https://he01.tci-thaijo.org/index.php/ams/article/view/66025.