The Rational Clinical Examination
David L. Simel, Drummond Rennie
Ultrasonography by Emergency Physicians in Patients With Suspected Cholecystitis.
cholecystitis, acute, criterion standard comparisons (diagnostic tests), likelihood ratio, measures of outcome, ultrasonography of abdomen
"Ultrasonography by Emergency Physicians in Patients
With Suspected Cholecystitis. Level 3, since not all patients referred for
formal ultrasonography were selected to undergo BUS...."
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