Mohd Anas Ansari
A Congenital Heart Defect (CHD) is an anatomic abnormality of the heart or major vessels that develops during fetal development. The exact cause of all congenital cardiac defects is not known. Congenital cardiac disease affects about 8 out of every 1000 live births. A ventricular septal defect is the most frequent type of heart abnormality.
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