Kantawong F, Wanachantararak phenphichar, Chamnanprai S, Kongpun C. Serum fluoride level of children in Omkoi District, Chiang Mai Province. J Assoc Med Sci [internet]. 2014 Sep. 3 [cited 2026 Sep. 11];47(3):185. available from: https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/59974