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SpringerPlus > 2016 > 5 > 1 > 1-7
The Spine Journal > 2015 > 15 > 6 > 1196-1202
Archives of Physical Medicine and Rehabilitation > 2011 > 92 > 6 > 913-919
SpringerPlus > 2016 > 5 > 1 > 1-7
The Spine Journal > 2015 > 15 > 6 > 1196-1202
Archives of Physical Medicine and Rehabilitation > 2011 > 92 > 6 > 913-919