1. Department of Pathology; Aizawa Hospital; Matsumoto Japan
2. Department of Pathology; School of Medicine; Keio University; Tokyo Japan
3. Pathology and Clinical Laboratory Division; National Cancer Centre Hospital; Tokyo Japan
4. Division of Diagnostic Pathology; Department of Clinical Laboratory Medicine; Shiga University of Medical Science; Shiga Japan
5. Department of Molecular Pathology; Shinshu University Graduate School of Medicine; Matsumoto Japan