Among 10 self-perceived voice health problems, teachers all have the high risk ratio, and even aphonia is 13.47.It must be cared.
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释义
六、自觉嗓者健康十个徵状上,教师组有显著较对照组高的风险性,其中经常失声的相对风险性为13.;47,值得重视。
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