What is Ramsay-Hunt syndrome?
Singer Justin Bieber revealed last week that he was diagnosed with Ramsay-Hunt syndrome. What is it? ABC News chief medical correspondent Dr. Jen Ashton explains.
Read More » 
Singer Justin Bieber revealed last week that he was diagnosed with Ramsay-Hunt syndrome. What is it? ABC News chief medical correspondent Dr. Jen Ashton explains.
Read More »