1. Department of Physiology; School of Medicine; University of Occupational and Environmental Health; Kitakyushu Japan
2. The Second Department of Internal Medicine; School of Medicine; University of Occupational and Environmental Health; Kitakyushu Japan
3. Department of Nephrology; Yoshino Hospital; Kitakyushu Japan
4. Division of Brain and Neurophysiology; Department of Physiology; Jichi Medical University; Shimotsuke Japan