«Frequency of Hepatitis B and C Co-Infection in Chronic Liver Disease Patients in Calabar, Cross River State, Nigeria», NJPS, т. 31, вып. 1, сс. 043–047, май 2021, просмотрено: 25 июнь 2026 г. [онлайн]. доступно на: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1851