Akter, S.; Islam, M. T.; Karim, T.; Alam, M. S.; Sultana, T.; Aktar, M. M.; Dey, L. Predictivity of Right Ventricular Outflow Tract Velocity-Time Integral in Detection of the Size of Secundum Atrial Septal Defect in Children. Int J Contemp Pediatr 2025, 12, 1916-1921.