RT Journal Article SR Electronic T1 Confirmation of asthma in an Era of Overdiagnosis JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society DO 10.1183/09031936.00165109 A1 V.P. Luks A1 K.L. Vandemheen A1 S.D. Aaron YR 2010 UL http://erj.ersjournals.com/content/early/2010/01/14/09031936.00165109.abstract AB