Coppler PJ, Abella BS, Callaway C, Chae MK, Choi SP, Elmer J, Kim WY, Kim YM, Kurz M, Oh JS, Reynolds J, Rittenberger JC, Sawyer KN, Youn CS, Lee BK, Gaieski DF, Korean Hypothermia Network Investigators and the National Post-Arrest Research Consortium