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Seroprevalence of hepatitis B Surface antigen among apparently healthy primary school pupils inBatagarawa Local Government area of Katsina State, Nigeria. Niger J Paediatr [Internet]. 2024 Jul. 2 [cited 2024 Nov. 18];44(3):136-9. Available from: https://www.njpaediatrics.com/index.php/njp/article/view/154