Can we improve the classification of ampullary adenocarcinoma? the value of histomolecular classification and clinicopatothological features on prognosis. (2021) - Muñoz, P.; Arranz, R.; Pastor, P.; Carretero, I.; Moreno, E.; Del Campo Abendea, L.; Perna, C.; Fernández-Cebrián, J.M.; Sanjuanbenito, A.; Santana, A.