1. A controlled study of the effect of prednisone on air-flow obstruction in severe pulmonary emphysema;Beerel, F.; Jick, H.; Tyler, J.M.;New England Journal of Medicine,1963
2. Prednisone treatment for stable pulmonary emphysema;Beerel, F.R.; Vance, J.W.;American Review of Respiratory Disease,1971
3. The relationship between airway resistance, airway conductance and lung volume in subjects of different age and body size;Briscoe, W.A.; Dubois, A.B.;Journal of Clinical Investigation,1958
4. Steroid therapy in chronic bronchitis;Clifton, M.; Stuart-Harris, C.H.;Lancet,1962
5. Bellows spirometer and transistor timer for the measurement of forced expiratory volume and vital capacity;Collins, M.M.; McDermott, M.; McDermott, T.J.;Journal of Physiology,1964