%0 Journal Article %A J. Kirkby %A S. Stanojevic %A L. Welsh %A S. Lum %A M. Badier %A C. Beardsmore %A A. Custovic %A K. Nielsen %A J. Paton %A W. Tomalak %A J. Stocks %T Reference equations for specific airway resistance in children: the asthma UK initiative %D 2010 %R 10.1183/09031936.00135909 %J European Respiratory Journal %U https://erj.ersjournals.com/content/erj/early/2010/02/11/09031936.00135909.full.pdf