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. Author manuscript; available in PMC: 2020 Aug 23.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2019 Jan 23;104(1):177–187. doi: 10.1016/j.ijrobp.2019.01.073

Fig. 1.

Fig. 1.

Representative GRID patterns created by a (A) Cerrobend block or (B) multileaf collimators, reproduced with permission from Neuner et al.13