«Iron Status of Pregnant Women in Rural and Urban Communities of Cross River State, South-South Nigeria», NJPS, vol. 31, núm. 2, p. 121–125, maig 2021, Consulta: 5 abril 2026. [En línia]. Disponible a: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1861