January 23, 2015 8:20 am Researchers identify genetic cause of Sturge-Weber syndrome Researchers identify genetic cause of Sturge-Weber syndrome, often associated with facial birthmarks, which means new trials and new hope for sufferers. US & World Videos 1:02 Google productivity expert authors guide to boost wellness 2:23 Watch: Feeling and showing the impact of organ donation 1:07 Watch: Autism specialist discusses rise in children on the spectrum 1:10 Bay Area app monitors problems for people living with Parkinson's 1:43 Traces of bird flu virus found in 1 in 5 samples of pasteurized milk, FDA says