1. Physical signs of diffuse airways obstruction and lung distension;Campbell, E.J.M.;Thorax,1969
2. Spirometry, lung volumes and airway resistance in normal children aged 5 to 18 years;Godfrey, S.; Kamburoff, P.L.; Nairn, J.R.;Brit. J. Dis. Chest,1970
3. Bronchial wall thickening in asthma;Hodson, C.J.; Trickey, S.E.;Clin. Radiol,1960
4. The radiological appearances in allergic bronchopulmonary aspergillosis;McCarthy, D.S.; Simon, G.; Hargreave, F.E.;Clin. Radiol,1970
5. The size of the retrostemal relatively transradiant area. In: Principles of Chest X-ray Diagnosis;Simon, G.,1970