The statistic results showed that the infection vermiform mite number ranging from the most to the fewest on the unit area is on the nose,chin and forehead sequently.

 
  • 用Q检验法比较了额、鼻、颏部蠕形螨两两均数;结果显示;单位面积的蠕形螨感染度以鼻部最多;依次为颏;额.
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