Wolfes, Julian ; Ellermann, Christian ; Broer, Niklas; Rath, Benjamin ; Willy, Kevin Kurt ; Leitz, Patrick R. ; Lange, Philipp Sebastian ; Eckardt, Lars ; Frommeyer, Gerrit: Antiarrhythmic Effect of Ranolazine in Combination with Selective NCX-Inhibition in an Experimental Model of Atrial Fibrillation