Françoise Le Pimpec-Barthes1, Marc Riquet2. 1. Thoracic Surgery Department, Georges Pompidou European Hospital, 20 Rue Leblanc, 75015 Paris, France. 2. Thoracic Surgery Department, Georges Pompidou European Hospital, 20 Rue Leblanc, 75015 Paris, France. Electronic address: marc.riquet@egp.aphp.fr.