1Department of Microbiology, School of Medicine, Chonnam National University, Gwangju 501-746, Republic of Korea,
2Brain Korea 21 Program,
3Dental Science Research Institute, Chonnam National University, Gwangju 500-757, Republic of Korea,
4Department of Preventive and Public Health Dentistry, Chonnam National University, Gwangju 501-746, Republic of Korea
1Department of Microbiology, School of Medicine, Chonnam National University, Gwangju 501-746, Republic of Korea,
2Brain Korea 21 Program,
3Dental Science Research Institute, Chonnam National University, Gwangju 500-757, Republic of Korea,
4Department of Preventive and Public Health Dentistry, Chonnam National University, Gwangju 501-746, Republic of Korea
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Corresponding author:
Choong-Ho Choi , Tel: 82-62-220-4439,