percutaneous transhepatic cholangiography
18 patients underwent biopsy procedure with percutaneous transhepatic cholangiography (PTC) and 34 patients with percutaneous transhepatic choledochoscopic.
18 patients underwent biopsy procedure with percutaneous transhepatic cholangiography ( PTC ) and 34 patients with percutaneous transhepatic choledochoscopic .