Bénard, A., Verpillot, E., Grandoulier, A.S., Perrouin-Verbe, B., Chêne, G. and Vignes, J.R., French Study Group on SARS (2013) Comparative cost-effectiveness analysis of sacral anterior root stimulation for rehabilitation of bladder dysfunction in spinal cord injured patients. Neurosurgery, 73, 600-608.