1. Department of Physiology, College of Medicine, Yeungnam University, 317–1 Daemyung-dong, Daegu, Republic of Korea
2. Department of Industrial & Physical Pharmacy, College of Pharmacy, Weldon School of Biomedical Engineering, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA.
3. Biomedical Research Institute, Korea Institute of Science & Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea