Toward optimal utilization of cardiac resources.
D002300:Cardiac Care Facilities / Q000600:supply & distribution*; D006328:Cardiac Catheterization / Q000706:statistics & numerical data*; D006348:Cardiac Surgical Procedures / Q000706:statistics & numerical data*; D006275:Health Facility Planning; D006782:Hospitals, Special / Q000600:supply & distribution*; D006801:Humans; D014481:United States