The effectivity of functional drink Keloja in improving nutritional status and immunity of underweight elderly. Nutrición Clínica y Dietética Hospitalaria, España, ES, v. 44, n. 4, 2024. DOI: 10.12873/444ngadiarti. Disponível em: https://revista.nutricion.org/index.php/ncdh/article/view/675. Acesso em: 13 may. 2025.