August 28, 2017 4:45 pm Stem Cell Clinic Closed For Unlicensed Testing on Patients NBC 7’s Mark Mullen reports on a stem cell clinic that was shut down by the Food and Drug Administration for testing unlicensed procedures on cancer patients. US & World Videos 2:45 La Jolla Concours d'Elegance classic race cars 1:39 Troops Endure Hyper-Realistic Training 2:07 New study links consuming red meat with dementia 2:05 Police find, return dozens of abandoned Amazon packages 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl