1. Division of Pulmonary Disease and Critical Care Medicine, Department of Internal Medicine, Dongsan Hospital Keimyung University School of Medicine Daegu South Korea
2. Department of Pathology, Dongsan Hospital Keimyung University School of Medicine Daegu South Korea
3. Department of Radiology, Dongsan Hospital Keimyung University School of Medicine Daegu South Korea
4. Department of Radiation Oncology, Dongsan Hospital Keimyung University School of Medicine Daegu South Korea
5. Department of Nuclear Medicine, Dongsan Hospital Keimyung University School of Medicine Daegu South Korea