The relationship between lymphatic vascular density and vascular endothelial growth factor A (VEGF-A) expression with clinical-pathological features and survival in pancreatic adenocarcinomas - Zorgetto, Verônica Assalin; Silveira, Giórgia Gobbi da; Costa, João Paulo Oliveira; Soave, Danilo Figueiredo; Soares, Fernando Augusto; Ribeiro-Silva, Alfredo (Diagnostic Pathology, 2013)