Seung Hyun Kim1 Chul Ho Chang1 Jeong-Rim Lee1 Seok Kyo Seo2 Young In Kwon3 Jae Hoon Lee1* 1Department of anesthesiology and pain medicine, Anesthesia and pain research institute, Yonsei University College of Medicine, Republic of Korea 2Department of Obstetrics and Gynecology, Institute of Women’s Life Medical Science, Yonsei University College of Medicine, Republic of Korea 3Department of Anesthesiology and Pain medicine, Yonsei University College of Medicine, Republic of Korea The final,...