We thank the members of Scientific Committee in the Korean Society of Anesthesiologists; Eun-Ho Lee (University of Ulsan College of Medicine, Seoul), Hyungseok Seo (Kyung Hee University College of Medicine, Seoul), Sun Young Park (Soonchunhyang University College of Medicine, Seoul), Jin-Tae Kim (Seoul National University College of Medicine, Seoul), Seo-kyung Shin (Yonsei University College of Medicine, Seoul), Jinseok Yeo (Kyungpook National University School of Medicine, Daegu), Dong-Kyu Lee (Korea University College of Medicine, Seoul), Jong-Hwan Lee (Sungkyunkwan University School of Medicine, Seoul), WooSuk Chung (Chungnam National University College of Medicine, Daejeon), Geun Joo Choi (Chung-Ang University College of Medicine, Seoul), Jae Hee Woo (Ewha Womans University College of Medicine, Seoul), Ji Su Jang (Hallym University College of Medicine, Chuncheon), Ah-Reum Cho (Pusan National University College of Medicine, Busan).