1. The high performance rural health care system of the future;Mueller,2011
2. Don't take geography for granted! Some methodological issues in measuring geographic distribution of physicians;Pong;Can J Rural Med,2001
3. Access to health care in America;Institute of Medicine, Committee on Monitoring Access to Personal Health Care Services,1993
4. Access to health services;Healthy People,2020
5. 2009 National healthcare quality and disparities reports;AHRQ (Agency for Healthcare Research and Quality),2010