Byuk Sung Ko received the B.S. degree from the College of Medicine and Medical School, Chosun University, Gwangju, Republic of Korea, in 2006, and the M.S. and Ph.D. degrees in medicine from the College of Medicine, University of Ulsan, in 2011 and 2018, respectively. Since 2018, he has been an Assistant Professor with the College of Medicine, Department of Emergency Medicine, Hanyang University, Seoul, Republic of Korea. His research interests include emergency medicine, critical care medicine, and resuscitation medicine.