RICCI, Claudio et al. Lymph Node Ratio as a Prognostic Factor in Patients with Pancreatic Endocrine Tumours. JOP. Journal of the Pancreas, [S. l.], v. 13, n. 5S, p. 635, 2012. DOI: 10.6092/1590-8577/1009. Disponível em: https://serena.sharepress.it/index.php/jop/article/view/1009. Acesso em: 20 apr. 2025.