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胸水体积和积分光密度之间的相关性分析。小鼠的胸水体积与其积分光密度值明显相关（r=0.91, P < 0.000, 1）。
Correlation analysis of the pleural fluid volume and the integral optical density after incubation. Significant correlation (r=0.91, P < 0.000, 1) were observed between pleural fluid volume and integral optical density.
