title: Letter: Safe protein/calorie ratios in diets.
mesh_terms: D000383:Agriculture; D002675:Child, Preschool; D004044:Dietary Proteins; D004734:Energy Metabolism; D005502:Food; D006801:Humans; D007390:International Agencies; D008954:Models, Biological; D009747:Nutritional Physiological Phenomena; D009751:Nutritional Requirements; D014944:World Health Organization
chemical_list: D004044:Dietary Proteins