title: A case in which treatment proved the diagnosis.
mesh_terms: D001835:Body Weight; D003967:Diarrhea / Q000209:etiology; D006801:Humans; D007732:Kwashiorkor / Q000150:complications* / Q000178:diet therapy; D008297:Male; D008875:Middle Aged; D009525:Niacin / Q000627:therapeutic use*; D010288:Parenteral Nutrition; D010289:Parenteral Nutrition, Total; D010383:Pellagra / Q000150:complications / Q000188:drug therapy*; D011502:Protein-Energy Malnutrition / Q000150:complications* / Q000178:diet therapy
chemical_list: D009525:Niacin