1. Department of Medical Technology, Faculty of Health Sciences, Gunma Paz University, 1-7-1 Tonyamachi, Takasaki-shi 370-0006, Gunma, Japan
2. Genki Plaza Medical Center for Health Care, 3-6-5 Iidabashi, Chiyoda-ku, Tokyo 102-0072, Japan
3. Department of Medical Technology, Faculty of Health Sciences, Kyorin University, 5-4-1 Shimorenjaku, Mitaka-shi, Tokyo 181-8621, Japan