1. Organizing care for patients with chronic illness;Wagner;Milbank Q,1996
2. The ecology of medical care;White;N Engl J Med,1961
3. Community oriented primary care: from principles to practice;Nutting,1987
4. Educating physicians for population-based clinical practice;Greenlick;JAMA,1992
5. Disease management: new wine in new bottles?;Harris;Ann Intern Med,1996