Fig. 2. (A) Axial, sagittal, and coronal views of intensity-modulated radiotherapy (IMRT)-simultaneous integrated boost
IMRT versus IMPT for distal esophageal cancer
Welsch J et al. Int. J. Radiation Oncology Biol. Phys., Vol. 81, No. 5, pp. 1336–1342, 2011