1. A framework for the study of access to medical care;Aday;Health Services Research,1974
2. Access to medical care;Aday,1975
3. The AHA annual survey database,2003
4. Exploring dimensions of access to medical care;Andersen;Health Services Research,1983
5. Appalachian Regional Commission (ARC) (2005). Counties in Appalachia. 〈www.arc.gov〉; last accessed 5 May 2005.