【篇号】1
【作者】Farrell RJ, Agarwal B, Brandwein SL, Underhill J, Chuttani R,
【文章标题】Pleskow DK. Intraductal US is a useful adjunct to ERCP for distinguishing malignant from benign biliary strictures.
【期刊名,年份,卷(期),起止页*****】Gastrointest Endosc. 2002;56:681–687.