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 > Imagine having a healthy child who falls ill and you have no idea why – even after many medical opinions. Chief Medical Officer of Pfizer Dr. Freda Lewis-Hall and parents Kristen and Clayton share their daughter’s unusual case. ShareTweet
