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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2016 Mar 24;95(5):1504–1512. doi: 10.1016/j.ijrobp.2016.03.018

Figure 2.

Figure 2

Identification of intra-tumor subregions based on population-level hierarchical clustering of the over-segmented superpixels (20 per patients) for the entire cohort (n=44).