1 Public Health Department, Montpellier University Hospital, 34295 Montpellier cedex 5, France; CEPEL, Université de Montpellier, INSERM, Centre national de la recherche scientifique, Montpellier, France.
2 Department of Neurology, Montpellier University Hospital, 34295 Montpellier cedex 5, France.
3 Department of Cardiology, Montpellier University Hospital, 34295 Montpellier cedex 5, France; PhyMedExp, Université de Montpellier, INSERM, Centre national de la recherche scientifique, Montpellier, France. Electronic address: f-roubille@chu-montpellier.fr.