Essential amino acid requirements of older men in relation to total nitrogen intake.
D000368:Aged / Q000378:metabolism; D000596:Amino Acids / Q000378:metabolism*; D000601:Amino Acids, Essential; D006801:Humans; D008297:Male; D009584:Nitrogen / Q000378:metabolism*
D000596:Amino Acids; D000601:Amino Acids, Essential; D009584:Nitrogen
AGED/metabolism; AMINO ACIDS/metabolism; NITROGEN/metabolism