Kriangsak Chaiwong. (2005) Evaluation of test kits for syphilis screening in blood donors. Mahidol University,:ม.ป.ท.Kriangsak Chaiwong. 2005. Evaluation of test kits for syphilis screening in blood donors. ม.ป.ท.:Mahidol University,;Kriangsak Chaiwong. Evaluation of test kits for syphilis screening in blood donors. ม.ป.ท.:Mahidol University, 2005. Print.