RT Journal Article SR Electronic T1 Passive smoking and asthma death JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1117 OP 1117 DO 10.1183/09031936.00082008 VO 32 IS 4 A1 G. Invernizzi A1 R. Boffi A1 A. Ruprecht A1 A. Lazzaro A1 L. M. Fabbri YR 2008 UL http://erj.ersjournals.com/content/32/4/1117.1.abstract AB