«Frequency of Hepatitis B and C Co-Infection in Chronic Liver Disease Patients in Calabar, Cross River State, Nigeria», NJPS, vol. 31, núm. 1, p. 043–047, maig 2021, Consulta: 8 juliol 2026. [En línia]. Disponible a: https://www.ojshostng.com/index.php/njphysiologicalsciences/article/view/1851