Outcomes after coronary computed tomography angiography in the emergency department: a systematic review and meta-analysis of randomized, controlled trials - Hulten, Edward; Pickett, Christopher; Bittencourt, Márcio Sommer; Villines, Todd C; Petrillo, Sara; Di Carli, Marcelo F; Blankstein, Ron (Journal of the American College of Cardiology, 2013)