[1] Chung Ang Univ, Dept Emergency Med, Coll Med, Seoul, South Korea
[2] Yonsei Univ, Dept Med Educ, Wonju Coll Med, 20 Ilsan Ro, Wonju 26426, South Korea
[3] Wonju Severance Christian Hosp, Dept Emergency Med, Wonju, South Korea
[4] Soonchunhyang Univ, Dept Emergency Med, Bucheon Hosp, Bucheon, South Korea
[5] Catholic Univ Korea, Coll Med, Dept Emergency Med, Seoul St Marys Hosp, Seoul, South Korea
[6] CHA Univ, Grad Sch Art Therapy, Pochon, South Korea
[7] Yonsei Univ, Dept Biostat, Grad Sch, Wonju, South Korea