Fitzgerald R J, Harding B, Ryan W
J Pediatr Surg. 1985 Feb;20(1):80-1. doi: 10.1016/s0022-3468(85)80399-7.
In a comparative study of fistula-in-ano and perianal abscess, over a 12-year period, evidence is presented to suggest that fistula-in-ano in childhood has a congenital etiology.
在一项为期12年的肛瘘与肛周脓肿对比研究中,有证据表明儿童肛瘘有先天性病因。