1. Internal Medicine III Wakayama Medical University Wakayama Japan
2. Respiratory Medicine Japanese Red Cross Wakayama Medical Center Wakayama Japan
3. Respiratory Medicine National Hospital Organization Minami Wakayama Medical Center Wakayama Japan
4. Department of Respiratory Medicine Naga Municipal Hospital Wakayama Japan
5. Respiratory Medicine National Hospital Organization Wakayama Hospital Wakayama Japan
6. Respiratory Medicine Wakayama Rosai Hospital Wakayama Japan
7. Internal Medicine Kinan Hospital Wakayama Japan
8. The Second Department of Internal Medicine Hidaka General Hospital Wakayama Japan