1. Department of Internal Medicine, Wonkwang University College of Medicine, Iksan, Korea.
2. Department of Pathology, Wonkwang University College of Medicine, Iksan, Korea.
3. Department of Therapeutic Radiology & Oncology, Wonkwang University College of Medicine, Iksan, Korea.
4. Department of Radiology, Wonkwang University College of Medicine, Iksan, Korea.
5. Department of Clinical Pathology, Wonkwang University College of Medicine, Iksan, Korea.
6. Good Cell Life, Inc., Seoul, Korea.
7. Department of Thoracic Surgery, Wonkwang University College of Medicine, Iksan, Korea.