Ethics approval and consent to participate
The study was conducted after obtaining approval from the Nihonbashi Cardiology Clinic Institutional Review Board (approval number: NJI-021-07-01, approval date: July 27, 2021) and registering with the University Hospital Medical Information Network (UMIN) Center, (UMIN 000045050; registration date: August 4, 2021) following the Declaration of Helsinki (the World Medical Association) and the ethical guidelines for bioscience and medical research in the spirit for human subjects (Ministry of Education, Culture, Sports, Science and Technology, Ministry of Health, Labor and Welfare, and Ministry of Economic, Trade, and Industry).