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[2] “Signs & Symptoms of Learning-Related Vision Problems - College of Optometrists in Vision Development (COVD).” What Is Vision Therapy?, www.covd.org/?page=symptoms.
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[3] “NCCDPHP: Community Health.” Centers for Disease Control and Prevention, Centers for Disease Control and Prevention, 13 Mar. 2017, www.cdc.gov/nccdphp/dch/multimedia/infographics/getmoving.htm.
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[4] “Problems & Conditions.” Sports Protection | The Vision Council, www.thevisioncouncil.org/content/digital-eye-strain/kids.
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[5] Paruthi, S, et al. “Recommended Amount of Sleep for Pediatric Populations: A Consensus Statement of the American Academy of Sleep Medicine.” Advances in pediatrics., U.S. National Library of Medicine, 15 June 2016, www.ncbi.nlm.nih.gov/pubmed/27250809
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