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2. The application of a quantitative estimate of cough frequency to epidemiological surveys;Field, G.B.;Int J Epidemiol,1974
3. Relationship of the loose cough sign to daily sputum volume;Hall, G.J.L.; Gandevia, B.;Br J Prev Soc Med,1971
4. A rapid plethysmographic method for measuring thoracic gas volume: a comparison with a nitrogen washout method for measuring functional residual capacity in normal subjects;Dubois, A.B.; Botelho, S.Y.; Bedell, G.N.; Marshall, R.; jun, Comroe J.H.;J Clin Invest,1956
5. Frequency dependence of flow resistance in patients with obstructive lung disease;Grimby, G.; Takishima, T.; Graham, W.; Macklem, P.; Mead, J.;J Clin Invest,1968