BeggsR., KellyM., EltayebO., CrottyP., McDermottR. and RidgwayP. (2012) “Large Cell Neuroendocrine Carcinoma of the Ampulla of Vater”, JOP. Journal of the Pancreas, 13(5), pp. 470-475. doi: 10.6092/1590-8577/821.