LEFT ATRIAL APPENDAGE CLOSURE VERSUS ORAL ANTICOAGULATION IN NON-VALVULAR ATRIAL FIBRILLATION; A SYSTEMIC REVIEW AND META-ANALYSIS Article Al-abcha A., Elshafie A., Rayamajhi S., Saleh Y., Elsayed M., Herzallah K., Baloch Z.Q., Banga S., Abela G.S. Cardiovascular Revascularization Medicine. Elsevier Science Publishing Company, Inc.. 2021.