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. 2022 Apr 29;13:20417314221085390. doi: 10.1177/20417314221085390

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© The Author(s) 2022

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 5. — Smart MN types. The smart MN response to the environmental changes allowed controllable factor release. Smart MNs were divided into two major groups exogenous- and endogenous-based stimuli.