1. Agency for Health Care Quality and Research (AHRQ) 2007 2007 National Healthcare Quality & Disparities Reports http://www.ahrq.com
2. Nurse's reports on hospital care in five countries;Aiken;Health Affairs,2001
3. Hospital nurse staffing and patient mortality, nurse burnout, and job dissatisfaction;Aiken;Journal of American Medical Association,2002
4. American Association of Colleges of Nursing (AACN) 2009 Nurse shortage fact sheet http://www.aacn.nche.edu/media/pdf/NrsgShortageFS.pdf
5. American Association of Colleges of Nursing (AACN) 2012 Nursing shortage resource http://www.aacn.nche.edu