1. Department of Materials Science and Bioengineering, Nagaoka University of Technology, Niigata 940-2188, Japan
2. College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
3. College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
4. Department of Comparative Medicine, King Faisal Specialist Hospital & Research Center, Riyadh 11211, Saudi Arabia