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DOYMA, E. (2014). Journal of Optometry (January-March 2014, Vol. 7, n.1, page 44-50). Spanish: Elsevier Espana.

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DOYMA, Elsevier. "Journal of Optometry". January-March 2014, Vol. 7, n.1, page 44-50 Spanish: Elsevier Espana, 2014. Text.