Petersen, O. F., Buhl, M., Eriksen, E. F., Fode, K., Klaerke, A., Krøyer, L.
, Lindeberg, H., Madsen, C. B., Miletic, T. & Strange, P. (1987).
The significance of preoperative radiological examinations in patients treated with Cloward's operation.
Acta Neurochirurgica,
88(1-2), 39-45.