1. From INSERM Unit 141, IFR Circulation, Hôpital Lariboisière, Paris, France (B.I.L.); Division of Cardiology, University of Perugia, Perugia, Italy (G.A.); Department of Physiology, Freie Universität Berlin, Germany (A.R.P.); and Cardiovascular Research Institute Maastricht, Universiteit Maastricht, the Netherlands (H.A.J.S.-B.).