1. The early origin of vertebral anomalies, as illustrated by a ‘butterfly vertebra.’;Muller;J Anat,1986
2. Butterfly vertebra or sagittal cleft vertebra;Colquhoun;Am J Orthop Surg,1968
3. A butterfly vertebra or a wedge fracture?;Garcia;Int Orthop,1993
4. MRI, CT, and plain film appearance of anterior spina bifida;Duffrin;Magn Reson Imaging,1987
5. MURCS association-a review of 7 cases;Mahajan;J Postgrad Med,1992