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作者采用血清的杀菌活性、唾液中的溶菌酶以及血中白血球的吞噬活性为指标,对60名生活在工业区和67名生活在绿化区的7～8岁儿童的免疫力进行测定。两组儿童的社会经济条件相近似。曾报导,中性白细胞中的碱性磷酸酶活性的
The authors used the serum bactericidal activity, the lysozyme in saliva and the phagocytic activity of blood leukocytes as an indicator to measure the immunity of 60 living in industrial areas and 67 children aged 7 to 8 living in green areas. The socio-economic conditions of the two groups of children are similar. It has been reported that neutrophil alkaline phosphatase activity