1. Division of Diagnostic Pathology; Yokohama City University Hospital; Yokohama Japan
2. Department of Pathology; Yokohama University Graduate School of Medicine; Yokohama Japan
3. Division of General Thoracic Surgery; Kanagawa Prefectural Cardiovascular and, Respiratory Centre Hospital; Yokohama Japan
4. Division of General Thoracic Surgery; Yokohama City University Hospital; Yokohama Japan