Risk factors for hepatitis B surface antigenaemia among secondary school students in Abakaliki, South Eastern Nigeria. NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 44, n. 1, p. 14–21, 2024. Disponível em: https://www.njpaediatrics.com/index.php/njp/article/view/170.. Acesso em: 18 nov. 2024.