00441nas a2200169   4500000000100000000000100001008004100002100001400043700001200057700001200069700001300081700001500094245013100109300001000240490000700250022001400257       2014                            d1 aA. Walker1 aJ. West1 aT. Card1 aD. Humes1 aM. Grainge00aVariation in the risk of venous thromboembolism in people with colorectal cancer: a population-based cohort study from England  a641-90 v12  a1538-7836