1. The Integrated Pulmonology; Tokyo Medical and Dental University; Tokyo 113-8510 Japan
2. Department of Microbiology and Infectious Disease; Toho University, Faculty of Medicine; Tokyo 143-8540 Japan
3. Department of Surgery; Toho University Sakura Medical Center; Chiba 285-8741 Japan
4. Department of Pathology; Toho University. Faculty of Medicine; Tokyo 143-8540 Japan