Mirza Mohd Kamran, Shaad Abqari, Azam Haseen, and Mayank Yadav, “Closure of a large upper muscular ventricular septal defect in a 2.3 kg baby using a duct occluder”, Pediatric Rev: int j pediatrics res, vol. 8, no. 3, pp. 163-167, Jun. 2021.