How much do residents cost the OR?
D019985:Benchmarking; D003625:Data Collection; D017721:Hospital Costs / Q000706:statistics & numerical data; D007396:Internship and Residency / Q000191:economics* / Q000706:statistics & numerical data; D009873:Operating Rooms / Q000191:economics* / Q000706:statistics & numerical data; D013996:Time and Motion Studies; D014481:United States; D000078329:Workforce