Teachers' influence on purchase and wear of children's glasses in rural China: The PRICE study - Xiuqin Wang; Yue Ma; Min Hu; Ling Jin; Xiao, Baixiang; Ming Ni; Hongmei Yi; Xiaochen Ma; Congyao Wang; Varga, Beatrice; Huang, Yiwen; Scott Rozelle; et al. (Clinical & Experimental Ophthalmology, 2019)