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DOYMA, E. (2014). Journal of Optometry (July-September 2014, Vol. 7, n.3, page 138-146). Spanish: Elsevier Espana.

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DOYMA, Elsevier. "Journal of Optometry". July-September 2014, Vol. 7, n.3, page 138-146 Spanish: Elsevier Espana, 2014. Text.