Seroprevalence of hepatitis B Surface antigen among apparently healthy primary school pupils inBatagarawa Local Government area of Katsina State, Nigeria. NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 44, n. 3, p. 136–139, 2024. Disponível em: https://www.njpaediatrics.com/index.php/njp/article/view/154.. Acesso em: 18 nov. 2024.