1. Department of Veterinary Surgery, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea.
2. Department of Veterinary Surgery, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea.
3. Avian Disease Laboratory, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea.
4. Seoul Cord Blood Bank, Histostem Co, Seoul 05372, Korea.
5. Department of Veterinary Clinical Pathology, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea.