1. Two years’ outcome of lung volume reduction surgery in different morphologic emphysema types 
Jürg Hamacher, MD, Konrad E Bloch, MD, Uz Stammberger, MD, Ralph A Schmid, MD, Irene Laube, MD, Erich W Russi, MD, Walter Weder, MD 
The Annals of Thoracic Surgery 
Volume 68, Issue 5, Pages (November 1999)
DOI: /S (99)00990-X

2. Fig 1
Medical Research Council (MRC) dyspnea score over time in the three morphology groups. Values are given as mean ± standard error of the mean.
The Annals of Thoracic Surgery  , DOI: ( /S (99)00990-X)

3. Fig 2
Forced expiratory volume in 1 second (FEV1) as percentage of its predicted value, in the three computed tomographic morphologic groups. Values are given as mean ± standard error of the mean.
The Annals of Thoracic Surgery  , DOI: ( /S (99)00990-X)

4. Fig 3
Residual volume/total lung capacity (RV/TLC) ratio in the three computed tomographic morphologic groups. Values are given as mean ± standard error of the mean.
The Annals of Thoracic Surgery  , DOI: ( /S (99)00990-X)

5. Fig 4
Survival in the three different morphologic groups. The difference in survival in the three groups was significant (p = 0.006).
The Annals of Thoracic Surgery  , DOI: ( /S (99)00990-X)