RT Journal Article SR Electronic T1 Airway macrophage carbon: biomarker of exposure to particulate matter air pollution JF European Respiratory Review JO EUROPEAN RESPIRATORY REVIEW FD European Respiratory Society SP 20 OP 21 DO 10.1183/09059180.00010711 VO 17 IS 107 A1 Kulkarni, Neeta YR 2008 UL http://err.ersjournals.com/content/17/107/20.abstract AB