TY - JOUR AU - Dandona R. AU - Dandona L. BT - Bulletin of the World Health Organization CN - Y DA - -35063704020 LA - eng LB - India M1 - 8 PY - 2008 SP - B EP - C. T2 - Bulletin of the World Health Organization TI - Estimation of global visual impairment due to uncorrected refractive error VL - 86 ER -