1. National Alliance for Health Information Technology Report to the Office of the National Coordinator for Health Information Technology on defining key health information technology terms 2008 http://healthit.hhs.gov/portal/server.pt?open=18&objID=848133&parentname=CommunityPage&parentid=5&mode=2&in_hi_userid=10741&cached=true
2. Office of the National Coordinator for Health Information Technology State Health Information Exchange Cooperative Agreement Program 2012 http://healthit.hhs.gov/portal/server.pt?open=512&objID=1488&mode=2
3. Hospital electronic health information exchange grew substantially in 2008-12;Furukawa;Health Aff,2013
4. Despite substantial progress in EHR adoption, health information exchange and patient engagement remain low in office settings;Furukawa;Health Aff,2014
5. 45 CFR Part 170. 2014 Edition Release 2 Electronic Health Record (EHR) Certification Criteria and the ONC HIT Certification Program; Regulatory Flexibilities, Improvements, and Enhanced Health Information Exchange. Final Rule;US Department of Health & Human Services;Federal Register,2014