1. Department of Radiation Oncology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
2. Department of Nuclear Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
3. Department of Pathology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
4. Department of Otorhinolaryngology-Head and Neck Surgery, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea