Dantas, Rosane Arruda, Lorita Marlena Freitag Pagliuca, and Paulo César de Almeida. 2008. “Optometric Scale for Pre -Schools: Method for Determination of Regional Figures”. Revista Da Escola De Enfermagem Da USP 42 (3): 437-44. https://doi.org/10.1590/S0080-62342008000300004.