A model to predict survival following pancreaticoduodenectomy for malignancy based on tumour site, stage and lymph node ratio. (April 2016) - Dasari, B.V.; Roberts, K.J.; Hodson, J.; Smith, A.M.; Stevens, L.; Muiesan, P.; Sutcliffe, R.P.; Isaac, J.; Marudanayagam, R.; Mirza, D.F.