Experiments and demonstrations in health services research.
D003363:Cost Control; D005102:Health Expenditures; D006291:Health Policy; D006302:Health Services Research / Q000379:methods*; D006280:Health Workforce; D007256:Information Systems; D011314:Preventive Health Services; D011785:Quality Assurance, Health Care; D012107:Research Design; D014481:United States