方法：粪便生理盐水直接涂片法，粪便涂片碘染液法。
Methods: Using the physiological saline direct smear method and iodine stain method to examine the feces.
采用直接涂片，淋巴细胞与多染性红细胞的微核率相似。
It was found that in the experiment for micronucleus of polychromatic erythrocyte (PCE) and lymphocyte cauld give similar results.
文献报道直接涂片检查操作方便、快速，但检出率较低。
Somebody reports that smear is a convenience and fast method, but the positive rate is low;
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