1. Electronic health record http://en.wikipedia.org/wiki/Electronic-health-record
2. Health insurance portability and accountability act (HIPAA) 1996
3. Health information technology for economic and clinical health (HITECH) act, title xiii of division a and title iv of division b of the american recovery and reinvestment act of 2009 (arra) 2009
4. Security Models and Requirements for Healthcare Application Clouds
5. ICDE ’02;Hacigumus,2002