Colussi, O., Voron, T., Pozet, A., Hammel, P., Sauvanet, A., Bachet, J., Vaillant, J., Rougier, P., Nordlinger, B., Berger, A., Coriat, R., Dousset, B., Malka, D., André, T., Paye, F., Aparicio, T., Locher, C., Cojean Zeleck, D., Tchinou, L., Bonnetain, F., & Taieb, J. (n.d.). prognostic score for recurrence after Whipple's pancreaticoduodenectomy for ampullary carcinomas; results of an AGEO retrospective multicenter cohort. European journal of surgical oncology, 41(4), 520–526. http://access.bl.uk/ark:/81055/vdc_100026005212.0x000043