Affiliation: | 1. Department of Human Pathology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan 2. Department of Pathology, Gunma University Hospital, Maebashi, Gunma, Japan 3. Department of Diagnostic Pathology, Hyogo Cancer Center, Akashi, Hyogo, Japan 4. Department of Pathology, Hidaka Hospital, Takasaki, Gunma, Japan
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