four patients were given the diet intravenously ( iv group ) ( total amino acids , 60-80 g/day , bcaa content 51 % , energy 2000 kcal/day ) and four patients ( ng group ) were given a semi-elemental formulation via constant nasogastric ( ng ) infusion ( amino acids 58 g , bcaa 43 % , oligopeptides 19.5 g , energy 2000 kcal/day ) .
C0002520
amino acids
C0002521
bcaa