1. Alderson, P.O., Secker-Walker, R.H., Strominger, D.B., Mcalister, W.H., Hill, P.L., Markham, J.: Quantitative assessment of regional ventilation and perfusion in childres with cystic fibrosis. Radiology 111, 151–155 (1974).
2. Amador, E., Potchen, E.J.: Serum lactic dehydrogenase activity and radioactive lung scanning in the diagnosis of pulmonary embolism. Amer. intern. Med. 65, 1247–1255 (1966).
3. ANDERSON, H.A.: Lung biopsy via the bronchoscope. Ann. Otol. (St. Louis) 79, 933–942 (1970).
4. Anthonisen, N.R., BASS, H., Heckscher, T.: 133Xe-Studies of patients after pneumektomy. Scand. J. resp. Dis. 49, 81–91 (1968a).
5. Anthonisen, N. R., Bass, H., Oriol, A., Place, R.E.G., Bates, D.V.: Regional lung function in patients with chronic bronchitis. Clin. Sci. 35, 495–511 (1968b).