Gomes, H., Lebre, R., Fonseca, J., Borralho, P. and Duarte, R. (1997) “Adenocarcinoma of the Vater’s ampulla associated with Von Recklinghausen’s neurofibromatosis”., Acta Médica Portuguesa. Lisbon, Portugal, 10(11), pp. 832–6. doi: 10.20344/amp.2506.