1. The clinical use of pneumotachography;Bouhuys, A.;Acta med. scand,1957
2. A comparison of spirometric and peak expiratory flow measurements in men with and without chronic bronchitis;Fairbairn, A.S.; Fletcher, C.M.; Tinker, C.M.; Wood, C.H.;Thorax,1962
3. Respiratory symptoms, bronchitis, and ventilatory capacity in random sample of an agricultural population;Higgins, 1. T. T;Brit. med. J,1957
4. Forced expiratory time: a simple test for airways obstruction;Lal, S.; Ferguson, A.D.; Campbell, E.J.M.;Brit. med. J,1964
5. Expiratory peak flow rate. Standard values for normal subjects. Use as a clinical test of ventilatory function;Leiner, G.C.; Abramowitz, S.; Small, M.J.; Stenby, V.B.; Lewis, W.A.;Amer. Rev. resp. Dis,1963