CAV2 and hemorrhage: Both the serum levels of caveolin-1 and caveolin-2 in hemorrhage group (0.14 ± 0.025 and 0.46 ± 0.043 ng/ml, respectively) are lower than in non-hemorrhage group (0.39 ± 0.046 and 0.47 ± 0.051 ng/ml, respectively).