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GYHL: Consultant for Bayer\/Janssen, BMS\/Pfizer, Medtronic, Boehringer Ingelheim, Novartis, Verseon and Daiichi-Sankyo. Speaker for Bayer, BMS\/Pfizer, Medtronic, Boehringer Ingelheim, and Daiichi-Sankyo. No fees are directly received personally. DG: Speaker for Bayer, BMS\/Pfizer, Boehringer Ingelheim, Daiichi-Sankyo, Medtronic, Biosense Webster and Boston Scientific. Proctor for Abbott. Research Grants from Medtronic, Biosense Webster and Boston Scientific. The funders had no role in the submitted paper. All authors declare no conflict of interest.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflicts of interest"}},{"value":"Left atrial appendage occlusion was provided as part of routine clinical care. As such, specific ethics committee approval for this\u00a0was not considered\u00a0necessary. 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