Wilson M D, Joffe A
Johns Hopkins University School of Medicine, Baltimore, Md, USA.
JAMA. 1995 Jun 7;273(21):1657-9.
In a survey of children and adolescents, one fourth of respondents reported having experienced an assault or abuse in the previous year. Violence is not restricted to inner cities. Marijuana use among eighth graders has more than doubled since 1991.
在一项针对儿童和青少年的调查中,四分之一的受访者报告称在过去一年中遭受过攻击或虐待。暴力并不局限于内城区。自1991年以来,八年级学生中的大麻使用率增加了一倍多。