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. 2022 Apr 7;12:852809. doi: 10.3389/fonc.2022.852809

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Copyright © 2022 He, Hu, Wang, Sun, Li, Yan, Meng, Zhang, Li, Yu and Wang

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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An example of manual segmentation of liver metastases from breast cancer. (A) The ROI in arterial phase. (B) The ROI in portal venous phase. (C) The ROI in delayed phase.