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. 2021 Oct 12;9:725047. doi: 10.3389/fbioe.2021.725047

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Copyright © 2021 Morin, Hellmich, Nejim and Avril.

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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Definition of the local reference system ${\underline{e}}_{r}, {\underline{e}}_{θ}, {\underline{e}}_{ϕ}$ associated with a specific fiber phase; and associated Euler angles θ and ϕ.