Visual impairment and spectacles ownership among upper secondary school students in northwestern China

Zhao, J ; Guan, H ; Du, K ; Wang, H ; Boswell, M ; Shi, Y ; Rozelle, S ; Congdon, N ; Osborn, A

Hong Kong Medical Journal, 2020-02, Vol.26 (1), p.35-43 [Periódico revisado por pares]

China: Hong Kong Academy of Medicine

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