Jittima Makrudthong และ Kanokwan Nisapakultorn. (2007) Indoleamine 2,3-dioxygenase expression in human gingival fibroblasts. Chulalongkorn University:ม.ป.ท.Jittima Makrudthong และ Kanokwan Nisapakultorn. 2007. Indoleamine 2,3-dioxygenase expression in human gingival fibroblasts. ม.ป.ท.:Chulalongkorn University;Jittima Makrudthong และ Kanokwan Nisapakultorn. Indoleamine 2,3-dioxygenase expression in human gingival fibroblasts. ม.ป.ท.:Chulalongkorn University, 2007. Print.