On patient need, equity, supplier-induced demand, and the need to assess the outcome of common medical practices.
D003669:Deductibles and Coinsurance; D006296:Health Services / Q000706:statistics & numerical data*; D006301:Health Services Needs and Demand; D006302:Health Services Research; D010819:Physician's Role; D011364:Professional Practice / Q000458:organization & administration; D012380:Role; D014481:United States