No abstract available
MeSH terms
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Bronchopulmonary Dysplasia / diagnosis
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Cardiac Catheterization
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Child
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Comorbidity
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Cyanosis / etiology
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Echocardiography
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Follow-Up Studies
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Heart Atria / abnormalities*
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Heart Defects, Congenital / diagnosis
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Heart Defects, Congenital / surgery*
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Heart Septal Defects, Atrial / diagnosis
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Heart Septal Defects, Atrial / surgery*
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Humans
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Infant, Newborn
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Male
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Phlebography
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Vena Cava, Inferior / abnormalities*