1. Chronic bronchitis? Pulmonary emphysema;Ziskind;Arch. Int. Med.,1961
2. Chronic pulmonary emphysema;Richards;Seminar Rep.,1961
3. The natural history, pathology, and treatment of chronic bronchitis;Garston;Dis. Chest,1961
4. The importance of allergy in the genesis of chronic bronchitis;Dias;Folia Allergol.,1961
5. Management of bronchial infection;Barach;New York J. Med.,1961