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Sometimes there is an opening between the 1_______ and the left side of the heart, or even between the aorta and pulmonary artery.
2_______ depend on the type of heart 3_______. Sometimes, the defect is picked up on a routine examination; at other times there may be breathlessness, difficulty in walking or running, swelling of feet and puffiness of face, and later of the whole 4_______. Some these anomalies can be surgically corrected.