1. Helicobacter pylori is a risk factor for hepatic encephalopathy in acute alcoholic hepatitis: the ammonia hypothesis revisited. The Veterans Administration Cooperative Study Group No. 275;Gubbins;Am J Gastroenterol,1993
2. Analysis of risk factors for chronic hepatic encephalopathy: the role of Helicobacter pylori infection;Dasani;Am J Gastroenterol,1998
3. Hyperammonaemia and Helicobacter pylori. Letter;Ito;Lancet,1995
4. Helicobacter pylori, ammonia and the brain;Taylor-Robinson;Gut,1997
5. Helicobacter pylori and plasma ammonia levels in cirrhotics: role of urease inhibition by acetohydroxamic acid;Zullo;Ital J Gastroenterol Hepatol,1998