1. School of Medicine, National Defense Medical Center, Taipei 114, Taiwan
2. Division of Colorectal Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
3. School of Public Health, National Defense Medical Center, Taipei 114, Taiwan
4. Institute of Molecular Medicine, National Tsing Hua University, Hsinchu 300, Taiwan
5. Data Science Statistical Cooperation Center, Institute of Statistical Science, Academia Sinica, Taipei 114, Taiwan
6. Department of Public Health, College of Medicine, Fu-Jen Catholic University, New Taipei City 242, Taiwan
7. Department of Health Business Administration, Meiho University, Pingtung County 912, Taiwan
8. Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 114, Taiwan
9. Health Service and Readiness Section, Armed Forces Taoyuan General Hospital, Taoyuan 325, Taiwan