1. Propranolol for prevention of recurrent gastrointestinal bleeding in patients with cirrhosis;Lebrec, D.; Poynard, T.; Hillon, P.; Benhamou, J.-P.;N Engl J Med,1981
2. The effect of nadolol on cerebral blood flow;Steiner, J.A.; Hughes, R.J.D.; James, I.M.,1981
3. Propranolol increases arterial ammonia in liver cirrhosis;van Burren HR; van der Velden PC; G, Koorevaar; J, Silberbusch;Lancet,1982