American College of Physicians/Annals of Internal Medicine
The American College of Physicians (ACP) is the largest Medical Specialty Organization in the United States, whose goal is to foster excellence and professionalism in internal medicine.
ACP publishes Annals of Internal Medicine, the most widely cited journal, focused on internal medicine and its subspecialties. The most recent (2018) Impact Factor for Annals of Internal Medicine is 19.315 (Clarivate Analytics). With 57,057 total cites in 2018.