Accountable Care Organizations 2 Humans 2 Medicare 2 United States 2 accountable care organization 2 accountable care organizations human 2 medicaid 2 medicare 2 Child 1 Cluster Analysis 1 Cross-Sectional Studies 1 Delivery of Health Care, Integrated 1 Health Services 1 Hospital Administration 1 Hospital Shared Services 1 Hospitals 1 Medicaid 1 ambulatory care 1 behavior 1 child 1 classification 1 cluster analysis 1 cross-sectional study 1 health service 1 hospital 1 hospital management 1 hospital service 1 hospitals 1 human experiment 1