1 Wonju City Public Health Center, Wonil-ro 139, Wonju-si, Kangwondo 26417, South Korea; Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea.
2 Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea.
3 Modelo Clinic, Apgujeong-ro 60 Gil 21, Seoul 06011, South Korea; Department of Materials Science & Engineering, College of Engineering, Yonsei University, Seoul 03722, South Korea.
4 Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea; Modelo Clinic, Apgujeong-ro 60 Gil 21, Seoul 06011, South Korea; Department of Materials Science & Engineering, College of Engineering, Yonsei University, Seoul 03722, South Korea. Electronic address: hjk776@yuhs.ac.