1. Department of Pediatrics; Osaka Red Cross Hospital; Osaka Japan
2. Department of Head and Neck Surgery; Osaka Red Cross Hospital; Osaka Japan
3. Department of Chest Surgery; Osaka Red Cross Hospital; Osaka Japan
4. Department of Pediatrics; Kyoto University Hospital; Kyoto Japan
5. Human Health Sciences; Kyoto University Graduate School of Medicine; Kyoto Japan
6. Department of Thoracic Surgery; Kyoto University Hospital; Kyoto Japan
7. Department of Diagnostic Pathology; Kyoto University Hospital; Kyoto Japan