Research Article
Daily Chronic Intermittent Hypobaric Hypoxia Does Not Induce Chronic Increase in Pulmonary Arterial Pressure Assessed by Echocardiography
Figure 3
Endothelin-1 at lowland and high altitude. Endothelin-1 serum levels increased at high altitude compared to lowland in CIHH as well as in controls ( in both groups, by t-test, paired). There was no significant difference between CIHH and controls. Measurements at lowland and altitude from each individual are connected by a line.