Shahzad, M.; Aldughaythir, M. S.; Alanazi, F.; Alanazi, A.; Alghamdi, M.; Alharbi, H.; Alsubaie, S.; Alshabanah, L.; Almohrij, J. Probiotics in Pediatric Cardiac Surgery: Biological Effects and Clinical Outcomes – a Systematic Review of Randomized Evidence. Int J Contemp Pediatr 2026, 13, 2322-2329.