近年来，在外科医生和相关学者的共同努力下，基础和临床上对于先天性肛直肠畸形的研究都取得了一定进展。
Recent years, there is some advancement on the investigations of congenital anorectal malformations both in the basis and clinic area.
LGIB前3位病因依次为结、直肠息肉、梅克尔憩室和肠重复畸形。
The first 3 most common etiologies of LGIB were colonic or rectal polypi, Meckel diverticulum, intestine duplication respectively.
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