ARTICLE 1
https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-020-09581-w
ARTICLE 2
https://storage.googleapis.com/plos-corpus-prod/10.1371/journal.pone.0099478/1/pone.0099478.pdf?X-Goog-Algorithm=GOOG4-RSA-SHA256&X-Goog-Credential=wombat-sa%40plos-prod.iam.gserviceaccount.com%2F20210428%2Fauto%2Fstorage%2Fgoog4_request&X-Goog-Date=20210428T203628Z&X-Goog-Expires=3600&X-Goog-SignedHeaders=host&X-Goog-Signature=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
ARTICLE 3
ARTICLE 4
https://www.verywellfamily.com/american-academy-pediatrics-screen-time-guidelines-1094883
ARTICLE 5
https://link.springer.com/article/10.1007/s10826-015-0144-4