Tong-Shin Chang, a professor of the college of pharmacy and the Director of the Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea, was a professor of the college of pharmacy, Ewha Womans University, Seoul, South Korea (2004~2019); postdoctoral fellow of Sue Goo Rhee's group, NHLBI, NIH, Bethesda, Maryland. U.S.A. (1999-2004); postdoctoral fellow of Eui-Ju Choi's group, Korea University, Seoul, South Korea (1997-1999); received his PhD degree in pharmacy from Seoul National University in 1997 and M.S. and B.S. degrees in pharmacy from Seoul National University in 1992 and 1990, respectively; has investigated antiplatelet drug development, stress-induced cellular toxicity, redox-mediated cell signaling regulation and peroxiredoxin system against ROS-induced cellular toxicity and is working on developing therapies to combat ROS-mediated damage and disease; and is a member of the Society of Toxicology, the Korean Society of Toxicology, the Pharmaceutical Society of Korea, and the Korean Environmental Mutagen Society.