Symptom score and pulmonary function expressed as peak expiratory flow(PEF), peak expiratory flow rate (PEFR) and forced expiratory volume in one second (FEV1) were recorded.
观察两组每日症状评分，早、晚最大呼气峰流速测定（PEF），肺功能检查（FEV1）。
AIM: to measure the flow volume of pulmonary arteries by using phase contrast magnetic resonance imaging (MRI) and to investigate the values of phase contrast MRI in assessing pulmonary perfusion.
目的：采用相位对比法磁共振成像(MRI)测量肺动脉血流量，探讨并评价两肺的血流灌注情况。
OBJECTIVE: To study the preventive and therapeutic actions of L-arginine on pulmonary hypertension induced by high pulmonary blood flow volume.
目的：研究l -精氨酸对高肺血流量所致肺动脉高压的防治作用。
OBJECTIVE: To study the preventive and therapeutic actions of L-arginine on pulmonary hypertension induced by high pulmonary blood flow volume.
目的：研究l -精氨酸对高肺血流量所致肺动脉高压的防治作用。
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