The authors sought to validate a clinical decision rule that young adult (younger than 40 years) chest pain patients without known cardiac disease who had either no cardiac risk factors and/or a normal electrocardiogram (ECG) are at low risk (<1%) for acute coronary syndromes (ACS) and 30-day adverse cardiovascular (CV) events.
Department of Emergency Medicine, Ground Floor Ravdin Building, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104-4293, USA.
