Part 1: Patients Turn To San Diego Stem Cell Companies For Costly, Unproven Treatments
The stem cell treatment industry is flourishing in the United States - especially in Southern California. Some San Diego companies point patients toward Tijuana for expensive treatments. But they have not published data proving these treatments to be safe or effective in humans. KPBS science reporter David Wagner brings us the story of one man who turned to a San Diego stem cell company after a debilitating stroke.
