Medigraphics: a new perspective on health care markets.
D002391:Catchment Area, Health / Q000706:statistics & numerical data*; D003627:Data Interpretation, Statistical; D003660:Decision Support Systems, Management; D003710:Demography; D006761:Hospitals; D008331:Management Information Systems; D008389:Marketing of Health Services / Q000379:methods*; D012959:Socioeconomic Factors; D014481:United States