1. Department of Radiation Oncology, Chi‑Mei Medical Center, Tainan 71069, Taiwan, R.O.C.
2. Division of General Surgery, Department of Surgery, Chi Mei Medical Center, Tainan 71069, Taiwan, R.O.C.
3. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Chi Mei Medical Center, Tainan 71069, Taiwan, R.O.C.
4. Department of Pathology, Chi Mei Medical Center, Tainan 71069, Taiwan, R.O.C.
5. Institute of Biomedical Sciences, National Sun Yat‑Sen University, Kaohsiung 80424, Taiwan, R.O.C.