„Frequency of Hepatitis B and C Co-Infection in Chronic Liver Disease Patients in Calabar, Cross River State, Nigeria“, NJPS, let. 31, št. 1, str. 043–047, maj 2021, Pridobljeno: 21. maj 2026. [Na spletu]. Dostopno na: https://www.ojshostng.com/index.php/njphysiologicalsciences/article/view/1851