“Frequency of Hepatitis B and C Co-Infection in Chronic Liver Disease Patients in Calabar, Cross River State, Nigeria”, NJPS, vol. 31, no. 1, पृ. 043–047, मई 2021, अंतिम उपयोग: 5 अप्रैल, 2026. [ऑनलाइन]. पर उपलब्ध: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1851