1. Centre for Cardiovascular and Metabolic Neuroscience, Neuroscience, Physiology & Pharmacology, University College London, United Kingdom (R.A., S.M., P.S.H., M.B., A.V.G.)
2. William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, London, United Kingdom (R.A., M.S., Q.A., Y.L., A.T.).
3. Institute of Cardiovascular Science, University College London, United Kingdom (M.O., P.T., P.D.L.)
4. Division of Cardiology, Karolinska Institute, Stockholm, Sweden (A.G.).