The negative rate of PPD-test was higher in group I than that of group II ( P < 0.01) and the positive rate of sputum had no significant differences from goup II ( P> 0.05).

  • 结核菌素试验阴性高,但两组痰结核菌阳性率差异不明显(p>0.05)。

  • 互联网摘选 2025-01-19 22:31:25

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