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Original Article
Doppler Echocardiographic Studies on Hemodynamic Changes in Early Neonatal Period.
Myung Kul Yum
Clin Exp Pediatr. 1989;32(2):158-164.   Published online February 28, 1989
Postnatal circulatory changes were studied with doppler echocardiography in 40 normal full term neonate before 6 hours, between 6 and 24 hours, and after 24 hours of age. The results of study were as follows; 1) Pulmonary artery flow velocity integral per minute which means total systemic blood flow increased during those period (854±58, 1027±128, 1198±57 cm/min). 2) Flow velocity integral per minute in ascendiing...
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