1. Department of Endocrinology and Metabolism, Division of Advanced Preventive Medical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
2. Department of Surgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
3. Department of General Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
4. Department of Nutrition Science, Faculty of Nursing and Nutrition, University of Nagasaki, Nagasaki 851-2195, Japan
5. Nutritional Management Division, Nagasaki University Hospital, Nagasaki 852-8501, Japan