1. Division of Pulmonary and Critical Care Medicine, Departments of Medicine, Thoracic and Cardiovascular Surgery, Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
2. Division of Pulmonary and Critical Care Medicine, Department of Medicine.
3. Division of Pulmonary and Critical Medicine, Department of Medicine.
4. Department of Thoracic Surgery.
5. Department of Anaesthesiology and Pain Medicine.