Authors' Comments: We deeply regret that part of the experimental data we previously published in the Korean Journal of Physiology and Pharmacology, 8, 173-179, August (2004) was included in the above-mentioned article by mistake. Therefore, we would like to withdraw this article written by Dao Kyong Kim, Yong Koo Kang, Moo Yeol Lee, Kwang-Gill Lee, Joo-Hong Yeo, Won Bok Lee, Yong Sik Kim, and Sung Su Kim from the Journal of Health Science. Sung Su Kim Department of Anatomy, College of Medicine, Chung-Ang University, Korea September 15, 2009