[1] Hop Jean Minjoz, CHU, Serv Pneumol, F-25030 Besancon, France
[2] Univ Franche Comte, CNRS, Lab Chronoenvironm, UMR 6249, F-25030 Besancon, France
[3] Hop Henri Mondor, INSERM, U841, F-94010 Creteil, France
[4] Hop Intercommunal Creteil, Serv Pneumol & Pathol Profess, Creteil, France