RT Journal Article SR Electronic T1 Parental occupation is a risk factor for childhood wheeze and asthma JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society DO 10.1183/09031936.00050009 A1 N. Tagiyeva A1 G. Devereux A1 S. Semple A1 A. Sherriff A1 J. Henderson A1 P. Elias A1 J.G. Ayres YR 2009 UL http://erj.ersjournals.com/content/early/2009/11/19/09031936.00050009.abstract AB