1. Department of Physiology; Dental Research Institute; Seoul National University School of Dentistry; Seoul Korea
2. Department of Oral Biochemistry; Dental Research Institute; Seoul National University School of Dentistry; Seoul Korea
3. Department of Oral and Maxillofacial Surgery; Dental Research Institute; Seoul National University School of Dentistry; Seoul Korea
4. Department of Physiology; Kangwon National University School of Medicine; Chuncheon Korea