Postoperative radiotherapy combined with 5-fluorouracil (5-FU) treatment improves outcome in rectal cancer. Some studies have suggested superiority for protracted venous infusion (PVI) of 5-FU ...

Immunotherapy. 2012;4(9):939-945. The percentage of patients achieving complete clearance of their AKs in the 5-FU group was 19, 28.2 and 52.6% in the 1-, 2- and 4-week treatment groups, respectively.