8Lo C M, Fan S T, Wong J. The changing epidemiology of' recurrent pyogenic cholangitis [J ]. Hong Kong Med J, 1997,3 ( 3 ) : 302-304,.
9Lai E C, Ngai T C, Yang G P, etal. Laparoseopic approach of surgical treatment tbr prima hepatolithiasis: a cohort study [J. Am J Surg, 2010,199(5):716-721.
10Keizman D, Shalom M I. Konikoff F M. An angulated common bile duct predisposes to recurrent symptomatic bile duct stones after endoscopic stone extraction [.1]. Surg Endosc, 2006,20(10) : 1594-1599.