1. Anterior sacral meningocele;Collar;Surg. Gynecol. Obstet.,1943
2. Anterior sacral meningocele: report of two cases and review of the literature;Haddad;Canad. J. Surg.,1958
3. Hereditary defect of the sacrum and coccyx with anterior sacral meningocele;Cohn;Acta Paediat. Stand.,1969
4. Anterior sacral meningocele;Silvis;Am. Surg.,1956
5. Anterior sacral meningocele;Amacher;Surg. Gynecol. Obstet.,1968