1. Division of Bioinformatics and Statistics, School of Public Health, National Defense Medical Center, Taipei 114, Taiwan
2. Department of Surgery, Cathay General Hospital, Taipei 106, Taiwan
3. Department of Nursing, Oriental Institute of Technology and Far Eastern Memorial Hospital, New Taipei City 220, Taiwan
4. Department of Epidemiology, School of Public Health, National Defense Medical Center, Taipei 114, Taiwan
5. Department of Nursing, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
6. Advpharma, Inc., New Taipei City 221, Taiwan
7. Division of Colorectal Surgery, Cheng Hsin Rehabilitation Medical Center, Taipei 112, Taiwan
8. Division of Colon and Rectal Surgery, Department of Surgery, Tri-Service General Hospital, Taipei 114, Taiwan
9. Division of Surgery, Tri-Service General Hospital, Taipei 114, Taiwan
10. Department of Medical Informatics, Faculty of Medicine, University of Heidelberg, Heidelberg 69120, Germany