SINGH, J. K.; SINGH, M. A clinical study of gastrointestinal obstruction among children in a tertiary referral centre of North India. International Surgery Journal, [S. l.], v. 6, n. 9, p. 3311–3315, 2019. DOI: 10.18203/2349-2902.isj20194071. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/4723. Acesso em: 10 nov. 2025.