RT Journal Article SR Electronic T1 Macrolides and bronchiolitis in infants JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1283 OP 1284 DO 10.1183/09031936.00001907 VO 29 IS 6 A1 M. Korppi YR 2007 UL http://erj.ersjournals.com/content/29/6/1283.abstract AB