J. Akpotuzor, A. Udoh, and M. Etukudo, “Total Antioxidant Status, Vitamins A, C and β-carotene Levels of Children with P. falciparum Infection in University of Calabar Teaching Hospital (UCTH), Calabar”, Pak. J. Nutr., vol. 6, no. 5, pp. 485–489, Aug. 2007, doi: 10.3923/pjn.2007.485.489.