Infective Exacerbations of COPD Sayiner Abdullah , MD, Okyay Nurtac , MD, Unsal Ipek , MD, Colpan Nesrin , MD CHEST Volume 115, Issue 5, (May 1999) DOI: 10.1378/chest.115.5.1481 Copyright © 1999 The American College of Chest Physicians Terms and Conditions
Figure 1 Prevalences of group A and group B bacteria according to patients’ FEV1 levels. The numbers express the percentage of patients infected with bacteria in subpopulations with FEV1 levels below the indicated values. CHEST 1999 115, DOI: (10.1378/chest.115.5.1481) Copyright © 1999 The American College of Chest Physicians Terms and Conditions