As an unprecedented amount of medical information bombards you and your patients, where do you go to sort it out and make sense of it all? When your patients request clarification on something they've "printed off" where do you turn for expert explanations? The same trusted resource physicians and students have turned to for over fifty years: Harrison's Principles of Internal Medicine. Now more than ever, trust Harrison's to filter and clarify the exploding knowledge base, to highlight the breakthroughs, and to deliver a clear, balanced distillation of the best and most current information on which to base clinical decisions.