1. Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center; Yonsei University College of Medicine; Seoul Republic of Korea
2. Graduate School of Medical Science and Engineering; KAIST; Daejeon Republic of Korea
3. Department of Otorhinolaryngology; Yonsei University College of Medicine; Seoul Republic of Korea
4. Department of Radiology; Yonsei University College of Medicine; Seoul Republic of Korea
5. Department of Pathology; Yonsei University College of Medicine; Seoul Republic of Korea