Fig. 2From: Quantitative assessment of radiation dose and fractionation effects on normal tissue by utilizing a novel lung fibrosis index modelDose-response modeling of pulmonary fibrosis induction after single and five fractions of photon irradiations. The sigmoidal curves were plotted based on fibrosis index (FI) (Adjusted R 2=0.972, 0.968 for 1-fx and 5-fx curve, respectively). Single fraction photon doses are shown as solid circles and five fractionated as solid squaresBack to article page