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. 2015 Apr 20;5:9846. doi: 10.1038/srep09846

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TOP LEFT: control group (at one hour) with folding index value 135. TOP RIGHT: control group (at one week) with folding index value 175. BOTTOM LEFT: 30-second group (at one hour) with folding index value 206. TOP RIGHT: 30-second group (at one week) with folding index value 121. White contours were the extracted contours of a given ROI using the image processing approach.