Saunders, Travis J.; Vallance, Jeff K. "Screen Time and Health Indicators Among Children and Youth: Current Evidence, Limitations and Future Directions". Applied Health Economics and Health Policy. 15 (3). 31 October 2016: 323–331. doi:10.1007/s40258-016-0289-3. PMID27798796.
Saunders, Travis J.; Vallance, Jeff K. "Screen Time and Health Indicators Among Children and Youth: Current Evidence, Limitations and Future Directions". Applied Health Economics and Health Policy. 15 (3). 31 October 2016: 323–331. doi:10.1007/s40258-016-0289-3. PMID27798796.