Stéphane Laurent1, Pierre Boutouyrie2, Elie Mousseaux2. 1. From the Department of Pharmacology (S.L., P.B.) and Department of Cardiovascular Radiology (E.M.), European Georges Pompidou Hospital, Assistance Publique-Hôpitaux de Paris, Inserm UMR 970, University Paris Descartes, Paris, France. stephane.laurent@egp.aphp.fr. 2. From the Department of Pharmacology (S.L., P.B.) and Department of Cardiovascular Radiology (E.M.), European Georges Pompidou Hospital, Assistance Publique-Hôpitaux de Paris, Inserm UMR 970, University Paris Descartes, Paris, France.