?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Durdey%2C+Paul&rft.aulast=Durdey&rft.aufirst=Paul&rft.tpages=453&rft.title=The+perioperative+assessment+of+rectal+neoplasia&rft.date=1990&rft.degree=Masters&rft.inst=UCL+(University+College+London)