【篇号】1
【作者】Krishna NB, Saripalli S, Safdar R, Agarwal B.
【文章标题】Intraductal US in evaluation of biliary strictures without a mass lesion on CT scan or magnetic resonance imaging: significance of focal wall thickening and extrinsic compression at the stricture site.
【期刊名,年份,卷(期),起止页*****】Gastrointest Endosc. 2007 Jul;66(1):90-6. Epub 2007 Apr 23.