1. Department of Surgery, Soonchunhyang University Cheonan Hospital, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan 31151, Republic of Korea
2. Department of Pathology, CHA Gangnam Medical Center, CHA University School of Medicine, Nonhyon-ro 569, Gangnam-gu, Seoul 06135, Republic of Korea
3. Department of Nuclear Medicine, Soonchunhyang University Cheonan Hospital, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan 31151, Republic of Korea