I. . Ahmadu, N. A. . Garba, M. S. . Abubakar, A. . Daniel, M. O. Asani, and I. . Aliyu, Trans., “Bleeding oesophageal varices in a 9 months old infant as a complication of neonatal umbilical catheterization – A case report”, Indian J Case Reports, vol. 6, no. 9, pp. 508–510, Sep. 2020, doi: 10.32677/IJCR.2020.v06.i09.009.