1. Case of deficiency of the anterior part of the sacrum with a thecal sac in the pelvis, similar to the tumor of spina bifida;Bryant T;Lancet,1837
2. Spinal dysraphia as an autosomal dominant defect in four families;Fineman RM;Am J Med Genet,1982
3. Cervical neurenteric fistula causing recurrent meningitis in Klippel-Feil sequence;Gumerlock MK;Pediatr Infect Dis J,1991
4. Nasal encephalocele as a cause of recurrent bacterial meningitis;Kohler T;Monatsschr Kinderheilkd,1991
5. Recurrent meningitis as a complication of anterior sacral meningocele with rectal fistula;Lisukova TE;Klin Med (Mosk),1991