1 Pulmonary Disorders and Respiratory Sleep Disorders Unit, Polyclinic Saint-Privat, Boujan sur Libron, France dany.jaffuel@wanadoo.fr.
2 Cardiology Unit, Clinic Pasteur, Toulouse, France.
3 Dept of Medical Information, Montpellier University Hospital, Montpellier, France.
4 Cardiology Unit, Hospital Center, Béziers, France.
5 Intensive Care Unit, Anaesthesia and Critical Care Dept B, Saint-Eloi Teaching Hospital, INSERM U1046, Montpellier 1 University, Montpellier, France.