Global variations and time trends in the prevalence of childhood myopia, a systematic review and quantitative meta-analysis: implications for aetiology and early prevention - Rudnicka, AR; Kapetanakis, VV; Wathern, AK; Logan, NS; Gilmartin, B; Whincup, PH; Cook, DG; Owen, CG (Br J Ophthalmol, 2016)
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