กรมอนามัย ก. Volume 9 Number 1-2 January - December 2004. Th Dent PH J [internet]. 2004 Dec. 27 [cited 2026 Sep. 19];9(1-2):1-108. available from: https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/212994