Americans seeking stem cell replacement therapy hope the process can heal them of myriad diseases, and a 2011 report by the Baker Institute estimated the industry could bring in $16 billion in revenue by 2020.
This is WEEKENDS on ALL THINGS CONSIDERED, from NPR News. I'm Laura Sullivan. And if it's anything like last year, tomorrow's Super Bowl will reach more than 111 million viewers, in this country alone. And while the game ends for the fans tomorrow night, for players, the effects will likely linger on.