1. From the Department of Clinical Sciences (P.M.N.), Lund University, University Hospital, Malmö, Sweden; Université Paris-Descartes (P.B., S.L.), Paris, France; Department of Pharmacology (P.B., S.L.), Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Paris France; and the Institut National de la Santé et de la Recherche Médicale U 970 (P.B., S.L.), Paris, France.