http://pediatrics.aappublications.org/content/141/5/e20173393 http://pediatrics.aappublications.org/content/141/5/e2017339... https://www.sciencedirect.com/sci

http://pediatrics.aappublications.org/content/141/5/e20173393 http://pediatrics.aappublications.org/content/141/5/e2017339... https://www.sciencedirect.com/science/article/pii/S136466130700188X https://www.sciencedirect.com/science/article/pii/S136466130... https://www.sciencedirect.com/science/article/pii/S0885200699000381 https://www.sciencedirect.com/science/article/pii/S088520069... and many, many others. Even if that was the original goal, reading to younger children has many other positive effects.