| 1. | Copeland GP, Jones D, Walters M. POSSUM: a scoring system for surgical audit [J]. Br J Surg, 1991; 73(3): 355-360. | 
				                                                        
				                                                            
				                                                                | 2. | Prytherch DR, Whiteley MS, Higgins B, et al. POSSUM and Portsmouth POSSUM for predicting mortality [J]. Br J Surg, 1998; 85(9): 1217-1220. | 
				                                                        
				                                                            
				                                                                | 3. | Tekkis PP, Prytherch DR, Kocher HM, et al. Development of a dedicated risk-adjustment scoring system for colorectal surgery (colorectal POSSUM) [J]. Br J Surg, 2004; 91(9): 1174-1182. | 
				                                                        
				                                                            
				                                                                | 4. | Fazio VW, Tekkis PP, Remzi F, et al. Assessment of operative risk in colorectal cancer surgery: the Cleveland Clinic Foundation colorectal cancer model [J]. Dis Colon Rectum, 2004; 47(12): 2015-2024. | 
				                                                        
				                                                            
				                                                                | 5. | Tekkis PP, Poloniecki JD, Thompson MR, et al. Operative mortality in colorectal cancer: prospective national study [J]. BMJ, 2003; 327(7425): 1196-1201. | 
				                                                        
				                                                            
				                                                                | 6. | Blazeby JM, Wil son L, Metcalfe C, et al. Analysis of clinical decision-making in multi-disciplinary cancer teams [J]. Ann Oncol, 2006; 17(3): 457-460. | 
				                                                        
				                                                            
				                                                                | 7. | Kelly MJ, Lloyd TD, Marshall D, et al. A snapshot of MDT working and patient mapping in the UK colorectal cancer centres in 2002 [J]. Colorectal Dis, 2003; 5(6): 577-581. | 
				                                                        
				                                                            
				                                                                | 8. | Wilmore DW, Kehlet H. Recent advances: management of patients in fast track surgery [J]. BMJ, 2001; 322(7284): 473-476. | 
				                                                        
				                                                            
				                                                                | 9. | Wind J, Polle SW, Fung Kon Jin PH, et al. Systematic review of enhanced recovery p rogrammes in colonic surgery [J]. Br J Surg, 2006; 93(7): 800-809. |