Medicine  

The world's most widely used medical reference. The thoroughly revised and updated 18th Edition is packed with essential information on diagnosing and treating medical disorders to help medical professionals deliver the best care to their patients.
This handy, compact guide was written for everyday use. The new Merck Manual of Diagnosis and Therapy makes it easy to find the right information, right when it is needed. It is a must-have for medical students, residents, practicing physicians, nurses, and allied health professionals.