该研究的目的就是调查生活在截然不同的社会环境中儿童的语音障碍的发病情况。从塞尔维亚的两个截然不同的社会环境中挑选了362名儿童，年龄在12～13岁之间，第一组204名生活在与邻近城市联系甚少的农村。第H组158名生活在一城市。两组儿童均在其所在学校受测试。由急、慢性炎 The purpose of this study was to investigate the incidence of speech impairment in children living in very different social settings. 362 children, aged 12-13, were selected from two distinct social settings in Serbia, the first 204 living in rural areas with little connection to neighboring cities. Group H 158 live in a city. Both groups of children are tested at their school. From acute and chronic inflammation