Lee Young-Seok, Choi Soo-Eun, Park Sung-Wook, Kim Keon-Sik
Department of Anesthesiology and Pain Medicine, College of Medicine, Kyung Hee University, Seoul, Korea.
Korean J Anesthesiol. 2012 Mar;62(3):293-4. doi: 10.4097/kjae.2012.62.3.293. Epub 2012 Mar 21.