https://www.heart.org/en/health-topics/congenital-heart-defects/care-and-treatment-for-congenital-heart-defects/cardiac-catheterizations-for-heart-defects
Cardiac Catheterizations for Heart Defects | American Heart Association
A cardiac catheterization is a procedure to treat heart defects. A doctor will use a thin plastic spaghetti-like tube or catheter that goes to the heart from...
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