1. Ano-Rectal Malformations in Children;Stephens,1971
2. Anorectal Malformations in Children: Update 1988;Stephens,1988
3. Individual deformities in the male;Stephens,1971
4. Incidence frequency of types and etiology of anorectal malformations;Smith,1988
5. Wingspread anomalies, rarities, and super rarities of the anorectum and cloaca;Stephens,1988