Backpack use and associated problems among primary school children in Nigeria: a call to action by stakeholders. NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 44, n. 3, p. 157–162, 2024. Disponível em: https://www.njpaediatrics.com/index.php/njp/article/view/194.. Acesso em: 10 apr. 2025.