RT Journal Article SR Electronic T1 Alveolar macrophages from smokers show strong intracellular fluorescence JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 842 OP 843 DO 10.1183/09031936.93.03070842 VO 3 IS 7 A1 CM Skold A1 A Eklund A1 J Hed YR 1990 UL http://erj.ersjournals.com/content/3/7/842.1.abstract