The most trusted textbook in medicine -- featuring the acclaimed Harrison's DVD with 57 additional chapters and exclusive video and tutorials Now presented in TWO VOLUMES Extensively revised and expanded by the world’s leading physicians, Harrison’s Principles of Internal Medicine, 18e continues to set the standard as the pinnacle of current medical knowledge and practice, offering the definitive review of disease mechanisms and management.

CURRENT All chapters have been completely updated to reflect the latest knowledge and evidence, and important new chapters have been added, including: "Systems Biology in Health and Disease," "The Human Microbiome," "The Biology of Aging," and "Neuropsychiatric Illnesses in War Veterans."

 The Harrison’s Multi-Media DVD— Better Than Ever! The Harrison’s DVD has been expanded to include an extensive video demonstration of the neurological physical examination, and video tutorials on how to perform essential clinical procedures, including: Thoracentesis Abdominal Paracentesis Endotracheal Intubation Central Venous Catheter Placement 57 additional chapters and more than 2,000 images make the companion DVD an essential part of every physician's education, practice, and lifelong learning.The DVD also features PowerPoint presentations from fifty chapters to facilitate classroom lectures, and a free trial subscription to AccessMedicine.com (including Harrison's Online).