Method: a total of 436 parents were divided into 3 groups according to their education levels and investigated via filling out self-designed planed immunization knowledge questionnaire.
设计计划免疫知识问卷，对43 6位家长进行调查，按不同文化程度分为3组，对问卷进行统计分析。
Method: a total of 436 parents were divided into 3 groups according to their education levels and investigated via filling out self-designed planed immunization knowledge questionnaire.
设计计划免疫知识问卷，对43 6位家长进行调查，按不同文化程度分为3组，对问卷进行统计分析。
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