⁴Dapt, of Oral and Maxillofacial Surgery, College of Dentistry, Wonkwang Univ.
Dapt, of Oral Microbiology, College of Dentistry,WonKwang Univ. ²Dapt, of Biology, College of Natural Science, ChunBuk National Univ, ³Dapt, of Clinical Pathology, Capital Armed Forces Hospital.