1. Department of Oral Physiology and Research Center for Tooth and Periodontal Tissue Regeneration; School of Dentistry, Kyung Hee University; Seoul Republic of Korea
2. Pain Cognitive Function Research Center, Department of Brain and Cognitive Sciences College of Natural Sciences, Seoul National University; Seoul Republic of Korea
3. Department of Neurobiology and Physiology; Dental Research Institute, School of Dentistry, Seoul National University; Seoul Republic of Korea
4. Department of Veterinary Physiology; College of Veterinary Medicine, Seoul National University; Seoul Republic of Korea
5. Department of Veterinary and Biomedical Sciences; College of Veterinary Medicine, University of Minnesota; St Paul MN