1. Laboratory of Pathology, Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Kagawa 761‑0123, Japan
2. Department of Medical Technology, Ehime Prefectural University of Health Sciences, Iyo, Ehime 791‑2101, Japan
3. Laboratory of Pathology, Department of Medical Technology, Kobe University Graduate School of Health Sciences, Kobe, Hyogo 654‑0142, Japan
4. Department of Clinical Laboratory, Shikoku Cancer Center, Matsuyama, Ehime 791‑0280, Japan