https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4237037/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4214609/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3433285/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4222332/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4214609/
http://sitn.hms.harvard.edu/flash/2018/dopamine-smartphones-battle-time/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3124340/
https://pubmed.ncbi.nlm.nih.gov/7472425/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4711067/
https://www.sciencedirect.com/science/article/pii/S0091305712001244?via%3Dihub
https://pubmed.ncbi.nlm.nih.gov/18955289/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4462609/
https://onlinelibrary.wiley.com/doi/full/10.1002/ptr.3437
https://pubmed.ncbi.nlm.nih.gov/18077056/
https://pubmed.ncbi.nlm.nih.gov/28632199/
https://pubmed.ncbi.nlm.nih.gov/18296328/
https://pubmed.ncbi.nlm.nih.gov/17182482/
https://pubmed.ncbi.nlm.nih.gov/10702779/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6262053/
https://pubmed.ncbi.nlm.nih.gov/26093535/
https://pubmed.ncbi.nlm.nih.gov/27107254/
https://pubmed.ncbi.nlm.nih.gov/23507223/
https://pubmed.ncbi.nlm.nih.gov/28391515/
https://pubmed.ncbi.nlm.nih.gov/21093467/
https://pubmed.ncbi.nlm.nih.gov/14649970/
https://pubmed.ncbi.nlm.nih.gov/15916709/
https://pubmed.ncbi.nlm.nih.gov/19809809/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3099008/