title: Delayed diagnosis of congenital anal stenosis.
mesh_terms: D001003:Anal Canal / Q000002:abnormalities* / Q000601:surgery; D002675:Child, Preschool; D003251:Constriction, Pathologic / Q000175:diagnosis / Q000601:surgery; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D013997:Time Factors