Short-term risk of arrhythmias among emergency department syncope patients with non-sinus rhythm. - Thiruganasambandamoorthy V; Kwong K; Stiell IG; Swampillai J; Toarta C; Sumner GL; Kuriachan VP; Mukarram M; Taljaard M; Hazra S; Wells GA; Sheldon R (International journal of cardiology, 2015)