Doctors told Calven Goza he wouldn't ever move his legs again. Watch him prove them wrong.<script type='text/javascript' src='http://i.cdn.turner.com/cnn/van/resources/scripts/van-widgets.js'></script> <div data-cnnvansinglewidget data-affiliate='gantdaily' data-videoid='health/2014/12/19/paralyzed-man-moves-legs-cohen.cnn' data-size='auto' data-autostart='true'></div>