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. Author manuscript; available in PMC: 2020 Mar 10.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2018 Oct 26;103(3):738–746. doi: 10.1016/j.ijrobp.2018.10.024

Fig. 2.

Fig. 2.

Representative computed tomography scan (a) and 4-dimensional computed tomography ventilation image (b) for a patient with gravity-dependent atelectasis.