Human protein requirements: obligatory urinary and fecal nitrogen losses and the factorial estimation of protein needs in elderly males.
D000368:Aged; D001481:Basal Metabolism; D004044:Dietary Proteins / Q000008:administration & dosage; D002149:Energy Intake; D006801:Humans; D008297:Male; D009584:Nitrogen / Q000378:metabolism*; D009751:Nutritional Requirements
D004044:Dietary Proteins; D009584:Nitrogen