[EJ-14-38]Effect of providing free glasses on children's educational outcomes in China: The "Seeing is Learning" cluster-randomized controlled trial.

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Author：Ma, Xiaochen, Zhongqiang Zhou, Hongmei Yi, Xiaopeng Pang, Yaojiang Shi, Qianyun Chen, Mirjam E. Meltzer, Saskia Le Cessie, Mingguang He, Scott Rozelle, Yizhi Liu, Nathan Congdon　　Periodical：British Medical Journal, (349):g5740.　　Source： ccap

BMJ-2014-REAP.pdf