Abid, A.; Butt, R. W.; Abbas, H. B.; Niazi, M.; Alam, S.; Shakil, H. DIAGNOSTIC ACCURACY OF COLOUR DOPPLER ULTRASOUND USING TWINKLING ARTEFACT FOR THE DIAGNOSIS OF RENAL AND URETERIC CALCULI KEEPING NON ENHANCED CT KUB AS GOLD STANDARD. PAFMJ 2021, 71, 522-25.