1. Hospital nurse staffing and patient mortality, nurse burnout, and job dissatisfaction;Aiken;JAMA,2002
2. Educational levels of hospital nurses and surgical patient mortality;Aiken;JAMA,2003
3. Implications of the California nurse staffing mandate for other states;Aiken;Health Services Research,2010
4. American Health Care Association Department of Research 2008 2007 AHCA survey nursing staff vacancy and turnover in nursing facilities http://www.ahcancal.org/research_data/staffing/Documents/Vacancy_Turnover_Survey2007.pdf
5. American Hospital Association 2006 Protecting and improving care for patients and communities: addressing workforce shortages http://www.hospitalconnect.com/aha/key_issues/workforce/ideas/index.html