Regional variations of health care delivery and utilization in the United States.
D003695:Delivery of Health Care; D006285:Health Planning; D006295:Health Resources / Q000600:supply & distribution*; D006301:Health Services Needs and Demand; D006761:Hospitals / Q000706:statistics & numerical data; D009511:New England; D012044:Regression Analysis; D014481:United States; D000078329:Workforce