Kalimeris, K. Kitsou, M. -C. Vlachodimitropoulos, D. and Batistaki, C. Kelekis, A., Inflammatory and apoptotic changes of the meninges and the spinal cord after epidural injection of ropivacaine, methylprednisolone or contrast material in the swine, European Journal of Anaesthesiology, (27), 135, 2010, Lippincott, Williams & Wilkins, 0265-0215, 1365-2346