1. Department of Family Medicine, School of Medicine, Wonkwang University, Iksan, Korea
2. Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Korea
3. Department of Pathology, School of Medicine, Wonkwang University, Iksan, Korea
4. Department of Laboratory Medicine and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Iksan, Korea
5. Department of Oriental Medical Ophthalmology & Otolaryngology & Dermatology, College of Oriental Medicine, Wonkwang University, Iksan, Korea
6. Wonkwang Institute of Clinical Medicine, Wonkwang University Hospital, Iksan, Korea