1. Ehime Prefectural University of Health Sciences, Department of Medical Technology, Faculty of Health Science, 543 Takoda, Tobe-cho, Iyo-gun, Ehime, 791-2101, Japan.
2. Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Department of Legal Medicine, 2-5-1, Shikata-cho, Kita-ku, Okayama-shi, Okayama, 700-8558, Japan.