title: Letter: Protein quality--for whom?
mesh_terms: D000328:Adult; D000367:Age Factors; D000601:Amino Acids, Essential / Q000008:administration & dosage; D002648:Child; D002675:Child, Preschool; D004044:Dietary Proteins; D006801:Humans; D007223:Infant; D009747:Nutritional Physiological Phenomena; D009751:Nutritional Requirements
chemical_list: D000601:Amino Acids, Essential; D004044:Dietary Proteins