What to Know About Gordie Howe’s Controversial Stem Cell Treatment

June 13, 2016

(TIME) – Hockey player Gordie Howe, whose death was announced Friday, was known for being a Detroit Red Wings legend—as well as the subject of controversial stem cell research. Howe received a rare stem cell treatment in December 2014 after suffering a series of strokes earlier that year, and his family has said the treatment spurred a recovery that was “truly miraculous.” Some experts have questioned its effectiveness. Here’s what you need to know about the experimental therapy.