Lee KJ, Kim BJ, Han MK, Kim JT, Choi KH, Shin DI, Cha JK, Kim DH, Kim DE, Ryu WS, Park JM, Kang K, Lee SJ, Kim JG, Oh MS, Yu KH, Lee BC, Hong KS, Cho YJ, Choi JC, Park TH, Park SS, Lee KB, Kwon JH, Kim WJ, Sohn SI, Hong JH, Lee J, Lee JS, Lee J, Gorelick PB, Bae HJ, CRCS‐K (Clinical Research Collaboration for Stroke in Korea) Investigators.