1. [Grimes 2005] Grimes , S. L. The challenge of integrating the healthcare enterprise Proceedings of Engineering in Medicine and Biology Magazine, IEEE 122 124 2005
2. [HIMSS 2011] Integrating Healthcare Enterprise 2011 http://www.himss.org/ASP/ topics_ihe.asp
3. [IHE ATNA 2011] 2011 http://wiki.ihe.net/index.php?title=Audit_Trail_and_Node_Authentication
4. [IHE ATNA FAQ 2011] 2011 http://wiki.ihe.net/index.php?title=ATNA_Profile_FAQ
5. [IHE Integration Profiles 2003] 2003 http://www.ihe.net/Resources/upload/iheyr3_integration_profiles. pdf