title: Nonprotein serum nitrogen in infancy.
mesh_terms: D001806:Blood Urea Nitrogen; D004044:Dietary Proteins; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007774:Lactation; D008297:Male; D009584:Nitrogen / Q000097:blood*; D011247:Pregnancy
chemical_list: D004044:Dietary Proteins; D009584:Nitrogen