How a Breakthrough Therapy Helped Two Paralyzed People Walk Again

When Kelly Thomas got the phone call that would change her life, she almost hung up. "I thought it was a sales call or something," Thomas remembers.

But on the line was a researcher from the Kentucky Spinal Cord Injury Research Center at the University of Louisville, offering Thomas a place in a trial — one that eventually allowed the 23-year-old Florida native, who became paralyzed after a 2014 car accident, to walk again.