Affiliation: | Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea (S.Y. Cho, H.J. Huh, N.Y. Chung, J.G. Ryu, C.-S. Ki, D.R. Chung, N.Y. Lee, J.-H. Song); ;Asia Pacific Foundation for Infectious Diseases, Seoul (J.Y. Baek, D.R. Chung, J.-H. Song) |