Balloon atrial septostomy let's take a closer look.
Ralph
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Mosca
D000800:Angioplasty, Balloon / Q000009:adverse effects*; D005260:Female; D006801:Humans; D002534:Hypoxia, Brain / Q000209:etiology*; D007231:Infant, Newborn; D008297:Male; D011300:Preoperative Care; D012307:Risk Factors; D014188:Transposition of Great Vessels / Q000150:complications / Q000601:surgery / Q000628:therapy*