1. Department of Respiratory Medicine and
2. Division of Epidemiology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee;
3. Scientific Research Works Peer Support Group, Osaka, Japan;
4. Clinical Research Center and
5. Department of Diagnostic Radiology, Ichinomiyanishi Hospital, Aichi, Japan;
6. Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Hyogo, Japan;
7. Department of Minimally Invasive Surgical and Medical Oncology, Fukushima Medical University, Fukushima, Japan;
8. Department of Thoracic Surgery, The University of Tokyo Hospital, Tokyo, Japan;
9. Division of Respiratory Medicine, Saiseikai Kumamoto Hospital, Kumamoto, Japan;
10. Department of Thoracic Medicine, Saiseikai Yokohama-shi Tobu Hospital, Kanagawa, Japan;
11. Division of Infectious Diseases, University of Iowa Hospitals and Clinics, Iowa City, Iowa;
12. Department of Respiratory Medicine, National Hospital Organization Tokyo Hospital, Tokyo, Japan;
13. Department of Diagnostic Imaging, Saitama Medical University International Medical Center, Saitama, Japan;
14. Department of Internal Medicine, Kyoto Min-iren Asukai Hospital, Kyoto, Japan;
15. Section of Clinical Epidemiology, Department of Community Medicine, and
16. Department of Healthcare Epidemiology, Graduate School of Medicine/School of Public Health, Kyoto University, Kyoto, Japan