1. Department of Emergency Medicine, Dongsan Medical Center, Keimyung University, Daegu 42601, Republic of Korea
2. Department of Emergency Medicine, Yeungnam University College of Medicine, Daegu 42415, Republic of Korea
3. Department of Emergency Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
4. Department of Emergency Medicine, School of Medicine, Daegu Catholic University, Daegu 42472, Republic of Korea
5. Department of Emergency Medicine, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu 41404, Republic of Korea
6. Department of Neurology, Dongsan Medical Center, Keimyung University, Daegu 42601, Republic of Korea