?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Treasure&rft.au=Treasure%2C+T&rft.aufirst=T&rft.date=13+May+2014&rft.atitle=The+CEA+Second-Look+Trial%3A+a+randomised+controlled+trial+of+carcinoembryonic+antigen+prompted+reoperation+for+recurrent+colorectal+cancer.&rft.issue=5&rft.title=BMJ+Open&rft.pages=-+%3F&rft.volume=4&rft.genre=article