Calladine, D., J. R. Evans, S. Shah, and M. Leyland. “Multifocal Versus Monofocal Intraocular Lenses After Cataract Extraction”. São Paulo Medical Journal, vol. 133, no. 1, Jan. 2015, p. 68, https://periodicosapm.emnuvens.com.br/spmj/article/view/1023.