title: ORs facing pressure for higher utilization.
authors: P
authors: P
authors: Patterson
mesh_terms: D004465:Economic Competition; D004526:Efficiency; D016345:Medicare Part B / Q000191:economics; D008962:Models, Theoretical; D009873:Operating Rooms / Q000191:economics / Q000706:statistics & numerical data*; D013996:Time and Motion Studies; D014481:United States