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“少生、优生”是我国长期国策。因此,如何减少伤残发生,提高人口素质对这一国策的实施有着重要和深远的意义。为调查分析本地区伤残儿童的主要病因,制订相应的防治措施,我院于1997年4月至1997年6月对100例伤残儿进行了病因配对调查。结果分析报告如下。对象与方法1对象 随机?
“Fewer students, eugenics” is our long-term national policy. Therefore, how to reduce the occurrence of disability and improve the quality of the population is of great and far-reaching significance for the implementation of this national policy. In order to investigate and analyze the main causes of disabled children in this area and make corresponding prevention and treatment measures, 100 cases of disability were investigated in our hospital from April 1997 to June 1997. The result analysis report is as follows. Object and method 1 object random?