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del Pilar Cacho M, García-Muñoz A, García-Bernabeu JR, López A.del Pilar Cacho M, et al.Optom Vis Sci. 1999 Sep;76(9):650-5. doi: 10.1097/00006324-199909000-00023.Optom Vis Sci. 1999.PMID: 10498007
Cantó-Cerdán M, Cacho-Martínez P, García-Muñoz Á.Cantó-Cerdán M, et al.Sci Rep. 2020 Nov 10;10(1):19403. doi: 10.1038/s41598-020-76403-9.Sci Rep. 2020.PMID: 33173104Free PMC article.