目的：探讨诺伍德手术治疗左心发育不全综合征的方法和疗效。
Objective: To evaluate the efficacy of Norwood procedure for treating hypoplastic left-heart syndrome (HLHS).
其他几个重要的导管依赖型病变：主动脉缩窄、左心发育不全综合征、肺动脉闭锁。
A few other important DUCTAL-DEPENDENT lesions: Coarctation of the Aorta, Hypoplastic Left Heart Syndrome, and Pulmonary Atresia.
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