Oral keto analogs of branched-chain amino acids in hyperammonemia in patients with cirrhosis of the liver. A double-blind, crossover study.

S.Walker, R.Götz, P.Czygan, A.Stiehl, G.Lanzinger, A.Sieg, R.Raedsch, B.Kommerell

Digestion 1982; 24: 105-111