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In this July 9, 2012 image made from video, Marine Sgt. Ron Strang shows his injured leg at the University of Pittsburgh Medical Center in Pittsburgh, Pa. He lost half of his thigh muscle from shrapnel in a bomb blast in Afghanistan, and with an experimental implant of connective tissue developed from pigs, it has had it strengthened. "It's been a huge improvement," he says. (AP Photo/Tom Sampson)

Surprising methods heal wounded troops

Scientists are growing ears, bone and skin in the lab, and doctors are planning more face transplants

and other extreme plastic surgeries. Around the country, the most

advanced medical tools that exist are now being deployed to help

America's newest veterans and wounded troops. (Sept. 10)