1. Department of Clinical Pathophysiology (K.A., Y.I.), Nagoya University Graduate School of Medicine and Hospital, Nagoya 466-8550, Japan
2. Second Department of Internal Medicine (K.A., K.H.), Kochi Medical School, Nankoku, Kochi 783-8505, Japan
3. Department of Internal Medicine (M.Y., M.A., Y.O., T.M.), Nagoya University Graduate School of Medicine and Hospital, Nagoya 466-8550, Japan