1. Laboratory of Veterinary Dermatology and The Research Institute for Veterinary Science College of Veterinary Medicine Seoul National University Seoul 08826 Korea
2. Origin Veterinary Dermatologic Hospital Busan 48280 Korea
3. Laboratory of Signal Transduction College of Veterinary Medicine Seoul National University Seoul 08826 Korea
4. Department of Veterinary Internal Medicine Konkuk Veterinary Medical Teaching Hospital Konkuk University Seoul 05029 Korea