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. Author manuscript; available in PMC: 2024 Feb 13.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2015 Dec 14;95(1):488–497. doi: 10.1016/j.ijrobp.2015.11.043

Fig. 1.

Fig. 1.

Significant normal tissue sparing is achieved with Proton Beam Therapy (PBT), which in this case is done with Intensity Modulated Proton Therapy, compared with intensity modulated radiation therapy (IMRT) for distal esophageal cancer.