Yaguo Ide, Lucy Eberechukwu, and Seye Babatunde. “Co-Infection With Hepatitis B, C and Human Immunodeficiency Virus in Nigerian Children With Sickle Cell Anaemia”. The Nigerian Health Journal, vol. 15, no. 1, Dec. 2015, p. 18, https://tnhjph.com/index.php/tnhj/article/view/185.