Fig. 1From: Optimizing the prescription isodose level in stereotactic volumetric-modulated arc radiotherapy of lung lesions as a potential for dose de-escalationVariations of averaged normal lung volumes receiving at least 5, 10, 20 and 30 Gy (i.e., V 5Gy , V 10Gy , V 20Gy , and V 30Gy ) as a function of prescription isodose levels. Error bars represent one standard deviations of V 5Gy , V 10Gy , V 20Gy , and V 30Gy Back to article page