Affiliation: | 1. Department of Histopathology and Cytopathology, Graduate School of Health Sciences, Gunma University, Maebashi, Gunma, Japan;2. Department of Pathology, Gunma University Hospital, Maebashi, Gunma, Japan;3. Department of Diagnostic Pathology, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan |