Surgical treatment for colorectal cancer: analysis of the influence of an enhanced recovery programme on long-term oncological outcomes-a study protocol for a prospective, multicentre, observational cohort study. - Ramirez-Rodriguez JM; Martinez-Ubieto J; Muñoz-Rodes JL; Rodriguez-Fraile JR; Garcia-Erce JA; Blanco-Gonzalez J; Del Valle-Hernandez E; Abad-Gurumeta A; Centeno-Robles E; Martinez-Perez C; Leon-Arellano M; Echazarreta-Gallego E; et al. (BMJ open, 2020)