Risk Factors for Low Serum Vitamin A among Under-Nourished Children in Institute of Child Health, Ahmadu Bello University Teaching Hospital, Zaria. Journal of Medical and Basic Scientific Research, Nigeria, v. 2, n. 1, p. 29–35, 2021. Disponível em: https://jmbsr.com.ng/index.php/jmbsr/article/view/27. Acesso em: 24 dec. 2024.