1. From the mermaid to anal imperforation: Syndrome of caudal regression;Duhamel;Arch. Dis. Child.,1961
2. Sacral agenesis with associated anomalies (caudal regression syndrome);Abraham;Clin. Orthopaed.,1979
3. Congenital sacral anomalies in children;Smith;Aust. N.Z. J. Surg.,1959
4. Sacral agenesis;Thompson;Paediatrics,1974
5. Caudal regression with a cake kidney and a single ureter: a case report;Brock;J. Urol.,1983