Discounts to needy patients.
D002608:Charities / Q000191:economics*; D005376:Financial Management / Q000191:economics*; D006301:Health Services Needs and Demand / Q000191:economics*; D006801:Humans; D006278:Medicare; D011203:Poverty; D011216:Practice Management, Medical / Q000191:economics*; D012959:Socioeconomic Factors; D014481:United States