方法采用SCL- 90、EPQ，随机抽取东北地区四个城市470名民工进行调查，并与国内常模进行比较。
Methods By the SCL-90 and EPQ, a sample of 470 peasant workers selected from four northeastern cities at random were tested and compared to usual models.
方法采用SCL- 90、EPQ，随机抽取东北地区四个城市470名民工进行调查，并与国内常模进行比较。
Methods By the SCL-90 and EPQ, a sample of 470 peasant workers selected from four northeastern cities at random were tested and compared to usual models.
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