1. Departments of Pathology
2. Surgery; Yokohama City University Graduate School of Medicine; 3-9, Future, Kanazawa-ku 236-0004 Yokohama Japan
3. Divisions of General Thoracic Surgery
4. Respiratory Medicine; Kanagawa Prefectural Cardiovascular and Respiratory Center Hospital; 6-16-1, Tomioka-higashi Kanazawa-ku 230-0051, Yokohama Japan