Assessment of nitrogen requirements.
D000220:Adaptation, Biological; D000328:Adult; D000367:Age Factors; D000596:Amino Acids / Q000032:analysis; D000601:Amino Acids, Essential / Q000008:administration & dosage; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002648:Child; D004032:Diet; D004044:Dietary Proteins / Q000378:metabolism / Q000592:standards; D004527:Egg Proteins; D002149:Energy Intake; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009584:Nitrogen / Q000378:metabolism*; D009751:Nutritional Requirements; D010940:Plant Proteins; D011247:Pregnancy
D000596:Amino Acids; D000601:Amino Acids, Essential; D004044:Dietary Proteins; D004527:Egg Proteins; D010940:Plant Proteins; D009584:Nitrogen