Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.

配戴低度凸透镜可降低小学生近视的发生率。

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Conclusion Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.

结论配戴低度凸透镜可降低小学生近视的发生率。

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Objective To explore the influence of age, gender and heart rate on QT interval in healthy primary and secondary school students.

目的探讨年龄、性别、心率对健康中小学生Q - T间期的影响。

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This initiative aims to increase school enrollment rate and average of students who accomplish their primary education in the regions with the highest numbers of out-of-school children.

UNESCO: OFFICE FOR IRAQ