1Dalla Palma L What is left of i. v. urography [J] ? Eur Radiol 2001 ,11:931.
2Smith RC, Rosenfield AT, Choe KA, et al. Acute flank pain:comparisono of non-contrast enhanced CT and intravenous urography[J]. Radiology 1995 , 194:789.
3Georgiades CS, Moore C J, Smith DP. Differences of renal parenchymal attenuation for acutely obstructed and unobstructed kidneys on unenhanced helical CT: a useful secondary sign [J] ? AJR Am J Roentgenol 2001 , 176:965.
4German I, Lantsberg S, Crystal P, et al. Non contrast computerized tomography and dynamic renal scintigraphy in the evaluation of patients with renal colic: are both necessary [J]? Euro Urol 2002,42:188.
5Shokeir AA, Mahran MR, Abdulmaaboud M. Renal colic in pregnant women:role of renal resistive index [J]. Urology 2000,55:344.
6Dellabella M, Milanese G, Muzzonigro G. Efficacy of tamsulosin in the medical management of juxtavesical ureteral stone [J]. J Urol 2003,170:2202.
7Heid F,Jage J. The treatment of pain in urology[J]. BJU International 2002,90:481.
