Borst GR, et al :“Radiation pneumonitis in patients treated for malignant pulmonary lesions with hypofractionated radiation therapy,” Radiotherapy and Oncology 91 :307-313, 2009
Nagata Y et al :“Clinical outcomes of a phase I / II study of 48 Gy of stereotactic body radiotherapy in 4 fractions for primary lung cancer using a stereotactic body frame” Int J Radiat Oncoi Biol Phys 63 : 1427-1431, 2005