"Costs for Hospital Stays in the United States, 2011." "Costs for Hospital Stays in the United States, 2011." "Costs for Hospital Stays in the United States, 2011." Costs for Hospital Stays in the United States, 2011 "Costs for Hospital Stays in the United States, 2011." Costs for Hospital Stays in the United States, 2011 Costs for Hospital Stays in the United States, 2011