Violi V, Costi R, De Bernardinis M, Pavlidis C, Roncoroni L. Volume-outcome relationship in colon cancer surgery: another biased logical short cut towards questionable centralization policies. Acta Biomed. 2014;84(3):171-180. Accessed April 30, 2026. https://www.mattioli1885journals.com/index.php/actabiomedica/article/view/3068