RT Journal Article SR Electronic T1 IL-1R antagonist gene and prenatal smoke exposure are associated with childhood asthma JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society DO 10.1183/09031936.00029506 A1 R.A. Ramadas A1 A. Sadeghnejad A1 W. Karmaus A1 S.H. Arshad A1 S. Matthews A1 M. Huebner A1 D-Y. Kim A1 S.L. Ewart YR 2006 UL http://erj.ersjournals.com/content/early/2006/11/15/09031936.00029506.abstract AB