«Frequency of Hepatitis B and C Co-Infection in Chronic Liver Disease Patients in Calabar, Cross River State, Nigeria» (2021) Nigerian Journal of Physiological Sciences, 31(1), p. 043–047. Disponible a: https://www.ojshostng.com/index.php/njphysiologicalsciences/article/view/1851 (Consulta: 8 juliol 2026).