ProMedica hospital system in Toledo is launching research into a possible treatment for traumatic brain injuries. The system is teaming with stem cell researchers in California on a clinical trial called the Gordie Howe Initiative. It's named for the hockey legend and Sylvania, Ohio resident who had a reversal of his brain injuries after being treated with stem cells. Researchers are hoping to include football players, hockey players and veterans in their study when it begins in the fall.