Ordering radiographs with the law in mind.

1352 CAN MED ASSOC J • 15 NOV. 1997; 157 (10) nario, thus choosing a middle-of-theroad decision point. Alternatively, physicians with patients who have specifically requested not to receive transfusions unless the opinion to give the transfusion is shared by a substantial majority of physicians might pick a transfusion decision threshold 2 standard deviations below the mean. It is our hope that with the continuing development of histogram data for a large number of representative clinical scenarios this technique of expressing clinical opinion may become useful in clinical decision-making.