1. Division of Endocrinology and Metabolism, Hematology, Rheumatology and Respiratory Medicine, Department of Internal Medicine, Faculty of Medicine, Kagawa University, Kita-Gun, Kagawa, Japan.
2. Department of Internal Medicine, Mitani-Fujita Hospital, Takamatsu, Kagawa, Japan.
3. Department of Oriental Medicine, Toyo Hospital, Tokushima, Japan.