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Okumura has received research funding from Bayer Healthcare, Daiichi-Sankyo, Bristol-Meyers Squibb, Nippon Boehringer Ingelheim, Pfizer, TORAY, and Boston Scientific Japan and has accepted remuneration from Bayer Healthcare, Daiichi-Sankyo, and Bristol-Meyers Squibb. T. Nakai is affiliated with the Department of Medicine, Division of Advanced Therapeutics for Cardiac Arrhythmias established using funds from Abbott Medical, Biotronik Japan, Medtronic Japan, Japan Lifeline; and Boston Scientific Japan. T. Nakai received lecture fees from Abbott Medical, Biotronik Japan, and Medtronic Japan. All of the other authors have no conflict of interest to report.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}