1. Division of Diagnostic Pathology; Saitama Prefectural Cardiovascular and Respiratory Centre; Saitama Japan
2. Department of Pathology; National Hospital Organization Kinki-chuo Chest Medical Centre; Osaka Japan
3. Department of Pathology; Tenri Hospital; Tanri City Japan
4. Department of Pathology; Osaka Habikino Medical Centre; Osaka Japan
5. Department of Diagnostic Pathology; Kanto Rousai Hospital; Kawasaki Japan
6. Department of Pulmonary Medicine; Saitama Prefectural Cardiovascular and Respiratory Centre; Saitama Japan