Gastrointestinal Haemorrhage in Children: A Retrospective Study of 64 cases. NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 13, n. 4, p. 133–139, 2024. Disponível em: https://www.njpaediatrics.com/index.php/njp/article/view/903.. Acesso em: 4 apr. 2025.