[1] Kings Coll London, Kings British Heart Fdn Cntr, London WC2R 2LS, England
[2] Med Univ Innsbruck, Dept Neurol, A-6020 Innsbruck, Austria
[3] Bruneck Hosp, Dept Lab Med, Brunico, Italy
[4] Bruneck Hosp, Brunico, Italy
[5] INSERM, U970, Paris Cntr Rech Cardiovasc HEGP, Paris, France