RT Journal Article SR Electronic T1 Ten principles for clean air JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 525 OP 528 DO 10.1183/09031936.00001112 VO 39 IS 3 A1 Brunekreef, B. A1 Annesi-Maesano, I. A1 Ayres, J.G. A1 Forastiere, F. A1 Forsberg, B. A1 Künzli, N. A1 Pekkanen, J. A1 Sigsgaard, T. YR 2012 UL http://erj.ersjournals.com/content/39/3/525.abstract AB