1. Volume 97, Issue 8, Pages 983-989 (August 2003)
Endothelin-1 levels in the pathophysiology of chronic obstructive pulmonary disease and bronchial asthma 
K Spiropoulos, G Trakada, E Nikolaou, E Prodromakis, G Efremidis, A Pouli, A Koniavitou 
Respiratory Medicine 
Volume 97, Issue 8, Pages (August 2003)
DOI: /S (03)00129-X

2. Figure 1
FEV1/FVC ratio in asthmatic and COPD “non-desaturators” and “desaturators” patients.
Respiratory Medicine  , DOI: ( /S (03)00129-X)

3. Figure 2
SatO2 in asthmatic and COPD “non-desaturators” and “desaturators” patients during daytime.
Respiratory Medicine  , DOI: ( /S (03)00129-X)

4. Figure 3
ET-1 in asthmatic and COPD “non-desaturators” and “desaturators” patients and normal controls during daytime.
Respiratory Medicine  , DOI: ( /S (03)00129-X)

5. Figure 4
ET-1 in “desaturators” COPD patients during daytime and during sleep.
Respiratory Medicine  , DOI: ( /S (03)00129-X)

6. Figure 5
Correlation of SatO2 and ET-1 levels in “desaturators” COPD patients during sleep (P<0.001, r=−0.939).
Respiratory Medicine  , DOI: ( /S (03)00129-X)

7. Figure 6
Correlation of SatO2 and ET-1 levels in “desaturators” COPD patients during daytime (P=0.005, r=−0.632).
Respiratory Medicine  , DOI: ( /S (03)00129-X)