[1] UPF CIBERES ISCiii, Hosp Mar IMIM, Dept CEXS, Resp Med, Barcelona, Spain
[2] CREAL, Ctr Res Environm Epidemiol, Barcelona, Spain
[3] Univ Athens, Sotiria Hosp, Technol Educ Inst Lamia Med, Physiotherapy,Pulm Rehabil Unit,Educ & Sports Sci, Athens, Greece
[4] Univ Sydney, Fac Hlth Sci, Discipline Physiotherapy, Sydney, NSW 2006, Australia
[5] Fdn Neumol Colombiana, Resp Med, Bogota, Colombia
[6] Queens Med Res Inst, UoE MRCCtr Inflammat Res, ELEGI Colt Lab, Edimburg, Scotland
[7] Univ Barcelona, IDIBAPS, CIBERES, Resp Med,Hosp Clin Prov Barcelona ICT, Barcelona, Spain
[8] Univ Ramon Llull, FCS Blanquerna, Grp Recerca Fisioterapia GReF, Barcelona, Spain