YouTube Testimonials Lure Patients to Shady Stem-Cell Clinics

Punch “stem cells” into YouTube and your first hit looks like something from a seventh-grade biology textbook. Number two features a Duke sports medicine doc injecting a syringe of bright red liquid into a heavily tattooed shoulder. Number three, with more than 2.5 million views, is a miked-up Mel Gibson regaling Joe Rogan with tales …