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2. Transjugular approach to the liver, biliary system and portal circulation;Rosch;Radiology,1975
3. La biopsia hepática transyugular;Pinchuk;Acta Gastroenterol Latinoam,1984
4. Improved transvenous liver biopsy needle;Henriksen;Scand J Gastroenterol,1979
5. Plugged percutaneous liver biopsy;Riley;Gut,1984