1. Percutaneous transhepatic cholangiography;Seldinger;Acta Radiol,1966
2. Percutaneous transhepatic cholangiography;Thorbjarnarson;Am Surg,1967
3. Percutaneous transhepatic cholangiography-experience with 106 examinations;Herba;J Can Assoc Radiol,1971
4. Normal or negative percutaneous cholangiogram;James;Arch Surg,1971
5. Percutaneous transhepatic cholangiography;Mujahed;Radiol Clin North Am,1966