Objective To compare the clinical outcomes of laparoscopy assisted pull through and open operation for Hirschsprung, s Disease (HD) in infants.

目的比较腹腔镜和剖腹行巨结肠根治术后二组婴儿在临床各方面的特点。

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Objective To investigate the mutations of EDNRB gene and EDN 3 gene in sporadic Hirschsprung s disease (HD) in Chinese population.

目的检测中国散发先天性巨结肠症是否有EDNRB 基因和EDN 3 基因突变，以探讨EDNRB及EDN 3与HD发生的关系。

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