1. Department of Oral Anatomy, School of Dentistry; Pusan National University; Yangsan Republic of Korea
2. Department of Electrical Engineering; Pohang University of Science and Technology; Pohang Republic of Korea
3. Department of Internal Medicine, School of Korean Medicine; Pusan National University; Yangsan Republic of Korea
4. Department of Electronic and Electrical Engineering; Pusan National University; Pusan Republic of Korea