^○Namo Kim, Jeongmin Kim, Sungwon Na (Department of Anesthesiology and Pain Medicine, Severance Hospital, Yonsei University College of Medicine, Korea)

^○Song Mi Lee¹, Yoo Jin Lee², Cheung Soo Shin³ (1. Department of Nutrition Services, Gangnam Severance Hospital, Korea, 2. Department of Clinical Health Sciences, The Graduate School of Clinical Health Science, Ewha Womans University, Korea, 3. Department of Anethesiology and Pain Medicine, Yonsei University College of Medicine, Korea)

^○Too Jae Min, Woon Young Kim (Department of Anesthesiology and Pain Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea)

^○Surat Tongyoo¹, Permpikul Chairat² (1. Division of Critical Care, Department of Medicine, Siriraj Hospital, Bangkok, Thailand, 2. Siriraj Hospital, Bangkok, Thailand)

^○Kaweesak Chittawatanarat¹, Tosapon Pichaiya² (Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 2. Department of Physical Therapy, Faculty of Associated Medical Science, Chiang Mai University, Chiang Mai, Thailand)

^○Jung Hee Kim, Kwan Young Song, Se Yon Jang, Min Ho Kong (Department of Neurosurgery, Seoul Medical Center, Korea)