[1] Hosp Clin Barcelona, Infect Dis Dept, E-08036 Barcelona, Spain
[2] Inst Invest Biomed August Pi & Sunyer IDIBAPS, Barcelona 08036, Spain
[3] Hosp Clin Barcelona, Inst Clin Torax, SGR 911 Ciber Enfermedades Resp Ciberes, Dept Pneumol, E-08036 Barcelona, Spain
[4] Univ Barcelona, Sch Med, E-08036 Barcelona, Spain