. 2015 Aug 27;2(2):e8. doi: 10.2196/rehab.3832
©Bruno Bonnechère, Bart Jansen, Lubos Omelina, Marcel Rooze, Serge Van Sint Jan. Originally published in JMIR Rehabilitation and Assistive Technology (http://rehab.jmir.org), 27.08.2015.
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Figure 1.
Equations.