Failure of low-cost audits with feedback to reduce laboratory test utilization.
D019411:Clinical Laboratory Techniques / Q000191:economics / Q000706:statistics & numerical data*; D003201:Computers; D003363:Cost Control / Q000379:methods; D005246:Feedback; D006785:Hospitals, University; D007388:Internal Medicine / Q000193:education; D007396:Internship and Residency; D009820:Ohio; D011897:Random Allocation; D014600:Utilization Review / Q000379:methods*