FILE - This 2010 photo provided by Rob Summers shows Summers, center, receiving intensive physical therapy in Louisville, Ky. Summers was paralyzed below the neck in a 2006 car accident and in 2009, ... more 
FILE - This 2010 photo provided by Rob Summers shows Summers, center, receiving intensive physical therapy in Louisville, Ky. Summers was paralyzed below the neck in a 2006 car accident and in 2009, doctors decided to implant an electrical stimulator onto his spinal cord to try waking up his damaged nervous system. Summers is now able to stand and move during therapy sessions with the stimulator turned on. Using a similar approach, researchers in Switzerland have had success with rats in special harnesses injected with special chemicals overcoming paralysis to walk and climb stairs. The results are reported in the Friday, June 1, 2012 issue of the journal Science by a team led by Gregoire Courtine. (AP Photo/Courtesy of Rob Summers) less 
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Associated Press | Photo By Courtesy of Rob Summers
Thu, May 31, 2012 3:00 PM EDT