Figure 1. Effect of acute exposure to high altitude (Munich, 490 m, to Jungfraujoch, 3454 m) on postprandial plasma levels of cholecystokinin (CCK).
Asterisks (*) indicate a significant increase (p<0.03) as compared with the preprandial values at 0 min and crosses (#) mean a significant (p<0.03) difference between the respective values at the two sea levels.