1. Department of Preventive Medicine, Chosun University School of Medicine, Gwangju, Korea.
2. Department of Preventive Medicine, Chonnam National University Medical School, Gwangju, Korea.
3. Jeonnam Regional Cancer Center, Chonnam National University Hwasun Hospital, Hwasun, Korea.
4. Department of Preventive Medicine & Institute of Wonkwang Medical Science, Wonkwang University College of Medicine, Iksan, Korea.
5. Department of Preventive Medicine, Chungnam National University School of Medicine, Daejeon, Korea.
6. Department of Neurology & Research Institute of Clinical Medicine, Chonbuk National University-Biomedical Institute of Chonbuk National University Hospital, Jeonju, Korea.
7. Department of Preventive Medicine, Seonam University College of Medicine, Namwon, Korea.
8. Center for Creative Biomedical Scientists, Chonnam National University, Gwangju, Korea.