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. Author manuscript; available in PMC: 2022 Oct 1.
Published in final edited form as: IEEE Trans Biomed Eng. 2021 Sep 20;68(10):3184–3193. doi: 10.1109/TBME.2021.3076094

Fig. 5.

Fig. 5

Phantom composed of soft sponge material. The distribution of 7 tumor holes on the phantom base.