[1] Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Yusong-gu, Taejon 305-701
[2] Korea Research Institute of Bioscience and Biotechnology, Taeduck Science Town, Taejon 305-600
[3] BioMedical Research Center, Korea Advanced Institute of Science and Technology, Yusong-gu, Taejon 305-701
[4] Department of Animal Science, College of Agriculture, Yanbian University
[5] Department of Anatomy, College of Medicine, Yanbian University
[6] Central Research Institute, Hanmi Pharmaceutical Company, Ltd., Sungnam, Kyunggi-do 463-400, Sampyong-dong
[7] College of Veterinary Medicine, Chungnam National University, Yusong-gu, Taejon 305-764, Kung-dong