1. Predicted values for closing volume using a modified single breath nitrogen test;Buist;Am. Rev. Respir. Dis.,1973
2. Linear and proportional regression models in the prediction of ventilatory function;Cole;J.R. Statist. Soc. A,1975
3. Influence of external resistance and minor flow variations on single breath nitrogen test and residual volume;DeGroodt;Clin. Resp. Physiol.,1983
4. Short and longterm variability of indices from the single and multiple breath nitrogen test;DeGroodt;Clin. Resp. Physiol.,1984
5. The elements of lawlike relationships;Ehrenberg;J.R. Statist. Soc. A,1968