This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed Code Restart Playing WATCH MORE VIDEOS FROM THIS EPISODE > Kristina suffers from severe neck pain. Neurosurgical spine specialist Dr. Ian Armstrong explains the surgery he performed on Kristina, using adult stem cells from cadavers to relieve her pain. ShareTweet
