1. Department of Pharmacy, Tokyo Sakura Hospital, Japan
2. Doctoral Program in Clinical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba,Japan
3. Department of Infectious Diseases, University of Tsukuba Hospital, Japan
4. Department of Respiratory Diseases, Tsuchiura Kyodo General Hospital, Japan
5. Department of Respiratory Medicine, Tsukuba Medical Center Hospital, Japan
6. Department of Respiratory Medicine, Tsukuba Gakuen Hospital, Japan
7. Department of Infectious Diseases, Tokyo Medical University Ibaraki Medical Center, Japan
8. Department of Pediatrics, Ibaraki Seinan Medical Center Hospital, Japan
9. Department of Gastroenterology and Hepatology, Ryugasaki Saiseikai Hospital, Japan