RT Journal A1 Tabas J T1 INtroduction to the “challenges in clinical electrocardiography” section JF Archives of Internal Medicine JO Archives of Internal Medicine YR 2011 FD January 10 VO 171 IS 1 SP 14 OP 14 DO 10.1001/archinternmed.2010.496 UL http://dx.doi.org/10.1001/archinternmed.2010.496 AB The electrocardiogram (ECG) is a critical tool of practicing physicians, including general internists, family medicine practitioners, intensivists, emergency physicians, cardiologists, and others. It is used to rapidly identify patients who require time-sensitive therapies such as emergent reperfusion therapy, as well as identify acute or chronic life-threatening conditions such as rhythm disorders, poisonings, electrolyte disturbances, or predisposition to sudden death. We are pleased to launch, in this issue of the Archives, a new section dedicated to the ECG titled “Challenges in Clinical Electrocardiography.”