1. Can England's NHS survive?;Black;N Engl J Med,2013
2. Overuse and systems of care: a systematic review;Keyhani;Med Care,2013
3. Canada: health system review;Marchildon;Health Syst Transit,2013
4. Better, Sooner, More Convenient Health Care in the Community,2011
5. SWITCH. Prescription to Non-prescription Medicines Switch,2009