LEFT ATRIAL APPENDAGE CLOSURE IN PATIENTS WITH A REDUCED LEFT VENTRICULAR EJECTION FRACTION: RESULTS FROM THE MULTICENTER GERMAN LAARGE REGISTRY ArticleFastner C., Borggrefe M., Akin I., Brachmann J., Lewalter T., Zeymer U., Sievert H., Weiß C., Geist V., Krapivsky A., Käunicke M., Mudra H., Hochadel M., Schneider S., Senges J.Clinical Research in Cardiology. 2020.