Department of Upper Gastrointestinal and Hepato-Pancreato-Bliliary Sugery,Barretos Cancer Hospital;
Department of Gastroenterology,University of S?o Paulo;
Instituto do Cancer do Estado de S?o Paulo,Universidade de S?o Paulo;
Colorectal; liver; metastases; Surgery; Chemotherapy; Clinical; trial; Long-term; outcomes; Surrogate; endpoints;