1. 1Department of Veterinary Ophthalmology, College of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Korea
2. 2Department of Veterinary Surgery, College of Veterinary Medicine, Konkuk University, Seoul, Korea
3. 3Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul, Korea