1. Department of Pharmacy, Chonbuk National University Hospital, Jeonju, Korea.
2. Department of Preventive Medicine, Chonbuk National University Medical School, Jeonju, Korea.
3. Research Institute of Clinical Medicine of Chonbuk National University-Chonbuk National University Hospital, Jeonju, Korea.
4. Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea.