RT Journal Article SR Electronic T1 Adenosine levels in the exhaled breath condensate: a potential surrogate marker of airway inflammation JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 392 OP 392 DO 10.1183/09031936.03.00024403 VO 22 IS 2 A1 L. Spicuzza A1 G.U. Di Maria A1 R. Polosa YR 2003 UL http://erj.ersjournals.com/content/22/2/392.1.abstract AB