1. ABIM Foundation ACP Federation European Federation of Internal Medicine Medical Professionalism in the New Millennium: A Physician Charter http://abimfoundation.org/wp-content/uploads/2015/12/Medical-Professionalism-in-the-New-Millenium-A-Physician-Charter.pdf
2. Medicine's ethical responsibility for health care reform - the top five list;Brody;N Engl J Med,2010
3. Canadian Institute for Health Information Unnecessary Care in Canada https://www.cihi.ca/en/unnecessary-care-in-canada
4. Avoiding overuse-the next quality frontier;Berwick;Lancet,2017
5. Organization for Economic Cooperation and Development (OECD) Tackling Wasteful Spending on Health http://www.oecd.org/els/health-systems/Tackling-Wasteful-Spending-on-Health-Highlights-revised.pdf