1Department of Internal Medicine, Korea Cancer Center Hospital, Korea Institute of Radiological & Medical Sciences, Seoul, Korea.
10Department of Surgury, School of Medicine, Gachon University, Incheon, Korea.
11Department of Nuclear Medicine, Kyungpook National University School of Medicine, Daegu, Korea.
12Department of Radiology, University of Ulsan College of Medicine, Seoul, Korea.
13Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea.
14Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul, Korea.
15Department of Otolaryngology, University of Ulsan College of Medicine, Seoul, Korea.
2Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea. bycho@plaza.snu.ac.kr
3Department of Internal Medicine, College of Medicine, Chungbuk National University, Cheongju, Korea.
4Department of Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea.
5Human Medical Imaging and Intervention Center, Seoul, Korea.
6Department of Nuclear Medicine, University of Ulsan College of Medicine, Seoul, Korea.
7Department of Pathology, Seoul National University College of Medicine, Seoul, Korea.
8Department of Otorhinolaryngology-Head and Neck Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea.
9Department of Endocrinology and Metabolosm, University of Ulsan College of Medicine, Seoul, Korea.