1. The viscosity of bronchial secretion;Sturgess;Clin. Sci.,1970
2. Changes in respiratory work and of arterial blood gases in chronic bronchitic syndrome;Gunther;Fortschr. Med.,1965
3. About the effect of the expectorant Bisolvon on respiratory function;Hamm;Arzneimittel-Forsch.,1966
4. Effect of bromhexine on ventilatory capacity of patients with a variety of chest disease;Gent;Lancet,1969
5. The pharmacological investigation of a substance with mucolytic properties;Englehorn;Arzneimittel-Forsch.,1963