Key points are not available for this paper at this time.
Four similar teams of physicians associated with similar inpatient units and randomly assigned patients were used to study the effect of providing physicians with cost information about their use of lab tests and x-rays. Two teams received information about lab test costs, and two teams received x-ray test costs. Test usage fell during the experimental conditions and continued to fall after the experimental period ended in teams in which there was an interested leader.
Cohen et al. (Mon,) studied this question.