1. The role of infection during exacerbations of chronic bronchitis;Bates;Ann Intern Med,1982
2. Multicentre comparative study of the efficacy and safety of roxithromycin and erythromycin ethylsuccinate in the treatment of lower respiratory tract infections;Bertrand;Br J Clin Pract,1985
3. Efficacy and safety of roxithromycin in respiratory tract infections;Grassi;Br J Clin Pract,1985
4. Multicentre comparative study of oral roxithromycin and amoxycillin in the treatment of respiratory tract infections;Hubrechts;Br J Clin Pract,1985
5. Chronic bronchitis, emphysema and airways obstruction;Ingram,1987