a decreasing trendp < 0.001
The index of the four groups showed a decreasing trend as follows: CFBB/Zn 2+ /CS > CFBB/CS > CFBB/Zn 2+ > CFBB ( p < 0.001).
The index of the four groups showed a decreasing trend as follows: CFBB/Zn 2+ /CS > CFBB/CS > CFBB/Zn 2+ > CFBB ( p < 0.001).