[1] Univ St Etienne, Fac Med Jacques Lisfranc, F-42023 St Etienne 2, France
[2] CHU St Etienne, Serv Dermatol, F-42270 St Priest En Jarez, France
[3] CHU St Etienne, Serv Immunol, F-42270 St Priest En Jarez, France
[4] CHU St Etienne, Serv Epidemiol & Sante Publ, F-42270 St Priest En Jarez, France
[5] CHU St Etienne, Serv Pneumol, F-42270 St Priest En Jarez, France