1. Division of Pulmonology, Department of Internal Medicine Kosin University College of Medicine, Kosin University Gospel Hospital Busan South Korea
2. Department of Internal Medicine The Armed Forces Goyang Hospital Goyang‐si South Korea
3. Department of Radiology Kosin University College of Medicine, Kosin University Gospel Hospital Busan South Korea
4. Division of Pulmonology, Department of Internal Medicine Pusan National University Hospital Pusan South Korea
5. Division of Pulmonology, Department of Internal Medicine Pusan National University Yangsan Hospital Yangsan South Korea
6. Division of Pulmonology, Department of Internal Medicine Gwanghye General Hospital Pusan South Korea
7. Division of Pulmonology, Department of Internal Medicine Inje University Busan Paik Hospital Busan South Korea
8. Division of Pulmonology, Department of Internal Medicine Inje University Haeundae Paik Hospital Busan South Korea
9. Division of Pulmonology, Department of Internal Medicine Kyungpook National University Chilgok Hospital Daegu South Korea
10. Division of Pulmonology, Department of Internal Medicine Yeungnam University Hospital Daegu South Korea
11. Department of Radiology Inje University Busan Paik Hospital Busan South Korea
12. Department of Radiology Dong‐A University College of Medicine Busan South Korea