RT Journal Article SR Electronic T1 Long-term asthma treatment guided by airway hyperresponsiveness in children. a randomized controlled trial JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society DO 10.1183/09031936.00111806 A1 M. Nuijsink A1 W.C.J. Hop A1 P.J. Sterk A1 E.J. Duiverman A1 J.C. de Jongste A1 the CATO Study Group YR 2007 UL http://erj.ersjournals.com/content/early/2007/05/30/09031936.00111806.abstract AB