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

作者：　　期刊： 　　来源：

作者：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　　期刊：British Medical Journal, (349):g5740.　　来源： ccap

BMJ-2014-REAP.pdf