DOI:
10.1055/s-00035026
Applied Clinical Informatics
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References
Warren C.
Average internet user now spends 68 hours per month online.
[Online]. 2009 October 14 [cited 2009 Nov 24]; URL:
http://mashable.com/2009/10/14/net-usage-nielsen Archived at:
http://www.webcitation.org/5mZSoIfnC
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