Affiliation: | 1. The Second Department of Surgery, Gunma University School of Medicine, 3-39-15 Showa-machi, Maebashi, 371, Gunma, Japan 2. Central Pathology Department, Gunma University School of Medicine, 3-39-15 Showa-machi, Maebashi, 371, Gunma, Japan 3. The First Department of Internal Medicine, Gunma University School of Medicine, 3-39-15 Showa-machi, Maebashi, 371, Gunma, Japan
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