1. Bronchial epithelium in former smokers;N EnglJ' Med
2. Cytology of the lung in reference to irritant, individual sensitivity and healing;Acta Cytol,1970
3. Cytology of the respiratory tract in former smokers;Plamenac, P.; Nikulin, A.; Pikula, B.;Acta Cytol,1972
4. Cytologic and ultrastructural discrimination between acute carcinogen effects and toxin-induced changes. A cta Cytol 1979; 23: 496-503. Tipton DL, Crocker TT. Duration of bronchial squamous metaplasia produced in dogs by cigarette smoke condensate. 7ournal of;the National Cancer Inistituite,1964
5. The development and persistence of bronchial gland hypertrophy and goblet cell hyperplasia in the pig after injection of isoprenaline;Baskerville, A.,1981