1. Burdon Sanderson Cardiac Science Centre Department of Physiology Anatomy and Genetics University of Oxford Oxford OX1 3PT UK
2. Department of Physiology and Biophysics College of Medicine Cardiovascular and Metabolic Disease Center Inje University Busan 614‐735 Korea
3. Università degli Studi di Firenze Dipartimento di Scienze farmaceutiche 50019 Florence Italy