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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: Cancer Metastasis Rev. 2020 Aug 10;39(3):903–918. doi: 10.1007/s10555-020-09921-7

Figure 2:

Figure 2:

Simple representation of the relationship between the regulatory and executory activities of a process. Some level of hierarchical relationships is implied where most regulatory activities are upstream of most executory activities. The representation is not intended to exclude the potential for feedforward and feedback activities that may limit the process and/or induce oscillations in process execution.