title: Medical services--demand versus need: a comment.
mesh_terms: D003365:Costs and Cost Analysis; D004470:Economics, Medical; D006280:Health Workforce / Q000600:supply & distribution; D008962:Models, Theoretical; D010548:Personal Health Services / Q000600:supply & distribution*; D011787:Quality of Health Care; D012946:Social Welfare; D014481:United States