... Italy.2Oncology Institute of SouthernSwitzerland, Bellinzona, Switzerland.Authors’ contributionsMA, FA, AF, PM, LC, PN carried out the data, participated in the dataevaluation and drafted the ... directlyaddressed in the present study. The present study waslimited to a more primordial aim: the demonstration of the clinical feasibility of SBRT treatments with FFFbeams, the demonstration of short term ... site and the volume of the lesion to irradiate. Lung lesions were treated withcumulative doses of 32 or 48 Gy, delivered in 4 consecutive fractions. The liver patients were treated in 3 fractionswith...