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. 2019 Mar 3;9(3):e022828. doi: 10.1136/bmjopen-2018-022828

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© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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The camera-based mirror visual feedback (camMVF) system used in the present study. (A) Normal MVF of bar grasping for patients in the camMVF or MG group. (B) Shielded mirror visual feedback intervention group for making a fist for patients in the sham-MVF or sham-MG group.