1. Department of Radiology, Jeju National University Hospital, Aran 13gil 15 (Ara-1-Dong), Jeju-si, Jeju Special Self-Governing Province 63241, Republic of Korea
2. Department of Pathology, Jeju National University Hospital, Aran 13gil 15 (Ara-1-Dong), Jeju-si, Jeju Special Self-Governing Province 63241, Republic of Korea