本文作者于１９９６年６～８月，在宁夏回族自治区银川市老城区、新城区进行神经症调查。现将有关情况报告如下：资料与方法对象采用整体分层随机抽样原则，将银川市总人口４０万划分为两区，并将两区按行政机构分为两个层次，即街道办事处与街道居委会。两区所辖街道办事... The author of this article conducted neurological investigations in the old and new urban areas of Yinchuan City, Ningxia Hui Autonomous Region from June to August 1996. The relevant situation is reported as follows: Data and Methods Subjects adopt the principle of overall stratified random sampling, dividing the total population of 400,000 in Yinchuan into two districts, and dividing the two districts into two levels according to administrative agencies, namely, street offices and streets. Neighborhood committees. Two districts under the jurisdiction of the street to do business ...