Belfiori, Giulio, Massimo Sartelli, Luca Cardinali, Cristian Tranà, Raffaella Bracci, Rosaria Gesuita, and Cristina Marmorale. 2015. “Risk Stratification Systems for Surgically Treated Localized Primary Gastrointestinal Stromal Tumors (GIST). Review of Literature and Comparison of the Three Prognostic Criteria: MSKCC Nomogramm, NIH-Fletcher and AFIP-Miettinen”. Annali Italiani Di Chirurgia 86 (3):219-27. https://annaliitalianidichirurgia.it/index.php/aic/article/view/1402.