04 Li Z, Xu K, Wu S, Lv J, Jin D, Song Z, Wang Z, Liu P. Population-based survey of refractive error among school-aged children in rural northern China: the Heilongjiang eye study. Clin Experiment Ophthalmol. 2014 May-Jun;42(4):379-84.

04 Li Z, Xu K, Wu S, Lv J, Jin D, Song Z, Wang Z, Liu P. Population-based survey of refractive error among school-aged children in rural northern China: the Heilongjiang eye study. Clin Experiment Ophthalmol. 2014 May-Jun;42(4):379-84.