%0 Journal Article %T The risk of colorectal cancer with symptoms at different ages and between the sexes: a case-control study %A Hamilton, William %A Lancashire, Robert %A Sharp, Debbie %A Peters, Tim J %A Cheng, KK %A Marshall, Tom %J BMC Medicine %V 7 %P 17-17 %D 2009-04-17 %I BioMed Central %~ DeepDyve