1 Department of Pathology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, Japan. aya.y0116@gmail.com.
2 Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
3 Department of Pathology, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, Japan.
4 Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.