The pulmonary arteries were well developed, with the pulmonary blood flow supplied principally by a large patent ductus arteriosus (PDA) in 9 patients;
肺动脉发育好，肺血由一粗大的动脉导管供给者9例；
The pulmonary arteries were well developed, with the pulmonary blood flow supplied principally by a large patent ductus arteriosus (PDA) in 9 patients;
肺动脉发育好，肺血由一粗大的动脉导管供给者9例；
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