U. Maestroni, F. Morandin, S. Ferretti, F. Dinale, and F. Ziglioli, “Recurrence of prostate cancer after HIFU. Proposal of a novel predictive index”, Acta Biomed, vol. 89, no. 2, pp. 220–226, Jun. 2018, doi: 10.23750/abm.v89i2.6730.