1. Ano-rectal malformations in children;Stephens,1971
2. Primary rectal ectasia. A quantitative study of smooth muscle cells in normal and hypertrophied human bowel;Brent;Prog Pediatr Surg,1976
3. Imperforate anus;Donovan;Ann Surg,1958
4. Pseudo-Hirschsprung's disease;Ravitch;Ann Surg,1958
5. Imperforate anus results in 63 cases and some anatomic considerations;Scott;Ann Surg,1959