Written by residents, fellows and attending, Pocket Medicine is the essential, concise guide to providing the key information a clinician needs for the initial approach to and management of the most common inpatient medical problems. Because of the special ring binding, we can only contain a certain amount of pages per edition. As a result, the depth and amount of content is prioritized, and the book only contains the most pertinent information. Since Cardiology is the most popular section, we are creating the Cardiology Subspecialty pullout. This pullout is designed to provide more content per topic as well as new topics for those who want more information. Readers can remove and insert the pages based on rotation schedule.