Vice chair and professor of surgery, Columbia University; author of five best-selling books, including You: Being Beautiful
"I trust three medical websites. I subscribe to UptoDate (Utdol.com) for basic information and Cochrane Reviews (Cochrane.org) for peer-reviewed studies on big subjects. For medical updates, I use WebMD.com."
With so much contradictory--and in some cases flat-out wrong--information on the Web, how do you make sure the advice you collect is reliable? Here, America's top wellness experts name their favorite health sites.