1) Funaki B, Zaleski GX, Straus CA, et al: Percutane-ous biliary drainage in patients with nondilated intrahepatic bile ducts. AJR Am J Roentgenol 173:1541-1544, 1999.
2) Lee W, Kim GC, Kim JY, et al: Ultrasound and fluo-roscopy guided percutaneous transhepatic biliary drainage in patients with nondilated bile ducts. Ab-dom Imaging 33:555-559, 2008.