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To measure serum B-type natriuretic peptide, especially N-terminal segment of its prohormone (NT-proBNP) and pulmonary arterial pressure levels and to determine whether NT-proBNP concentrations correlate with pulmonary arterial pressure levels in children before and after adenotonsillectomy.Twenty children with adenoid and tonsil hypertrophy and 20 healthy subjects were included in the study. Transthoracic...
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