Orthograde whole gut irrigation with mannite vs. paromomycin + lactulose as prophylaxis of hepatic encephalopathy in patients with cirrhoris and upper gastrointestinal bleeding: Results of a controlled randomised trial: [formula omitted], G.H. Micklefield, H. Hilden, D. Hüppe, U. Schwegler, B. May. Dept. of gastroenterology, BG-Kliniken Bergmannsheil-Universitätsklinik, Bochum (Germany)