【篇号】1
【作者】Draganov PV, Chauhan S, Wagh MS, et al.
【文章标题】Diagnostic accuracy of conventional and cholangioscopy-guided sampling of indeterminate biliary lesions at the time of ERCP: a prospective, long-term follow-up study.
【期刊名,年份,卷(期),起止页*****】Gastrointest Endosc. 2012; 75:347–53.