1. Diagnosis of Emphysema
D.S. McCarthy, M.D., M. Robertson, M.D., G. Simon, M.D. 
CHEST 
Volume 68, Issue 1, Pages (July 1975)
DOI: /chest
Copyright © 1975 The American College of Chest Physicians Terms and Conditions

2. Figure 1
The relationship between lung volume and maximal expiratory flow rate (MEFR) in subjects with normal chest films (•), those with limited (▪) and those with widespread (×) radiologic emphysema. Flow is expressed as total lung capacity (TLC per sec) to correct for possible differences in lung size. Control subjects (▵); ×±SD.
CHEST  , 46-50DOI: ( /chest )
Copyright © 1975 The American College of Chest Physicians Terms and Conditions

3. Figure 2
The relationship between lung volume and static transpulmonary pressure in subjects with normal chest films (•), those with limited (▪) and those with widespread (×) radiologic emphysema. Volume is expressed as percent predicted total lung capacity (TLC) to correct for possible differences in lung size. Control subjects (▵); ×±SD.
CHEST  , 46-50DOI: ( /chest )
Copyright © 1975 The American College of Chest Physicians Terms and Conditions

4. Figure 3
The relationship between the maximum recoil pressure and the radiologic category of emphysema in control subjects (▵), patients with normal chest films (•), those with limited (▪) and those with widespread (×) radiologic emphysema. Patients with normal chest radiographs were subdivided into two groups depending upon whether maximum recoil pressure was greater or less than 10 cm H2O (dashed lines).
CHEST  , 46-50DOI: ( /chest )
Copyright © 1975 The American College of Chest Physicians Terms and Conditions

5. Figure 4
The relationship between lung volume and static transpulmonary pressure in patients with normal chest films (•) but maximum recoil pressure less than 10 cm H2O and those with widespread (×) radiologic emphysema. Control subjects (▵); ×±SD.
CHEST  , 46-50DOI: ( /chest )
Copyright © 1975 The American College of Chest Physicians Terms and Conditions