Beta-adrenergic-antagonist drugs in the prevention of gastrointestinal bleeding in patients with cirrhosis and esophageal varices : an analysis of data and prognostic factors in 589 patients from four randomized clinical trials

1991 
In this study, we analyzed data on individual patients from four randomized, controlled trials to assess the efficacy of this treatment. Of the 589 patients studied, 286 received a beta-adrenergic-antagonist drug (propranolol in 203 and nadolol in 83) and 303 received placebo
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