Obligatory nitrogen losses.
D000293:Adolescent; D000328:Adult; D044466:Asian People; D001900:Boston; D002648:Child; D004044:Dietary Proteins; D005006:Ethnicity; D005069:Evaluation Studies as Topic; D005243:Feces / Q000032:analysis; D006801:Humans; D007390:International Agencies; D008297:Male; D009584:Nitrogen / Q000378:metabolism / Q000652:urine; D009748:Nutrition Disorders / Q000378:metabolism; D009751:Nutritional Requirements; D011488:Protein Deficiency / Q000378:metabolism / Q000652:urine; D013624:Taiwan; D044465:White People; D014944:World Health Organization
D004044:Dietary Proteins; D009584:Nitrogen