Movasaghi, R., Salehpour, F., Ahmadvand, A., Agha-Mohammadi, D., Dorosty, A.A. and Vafaee, R. 2012. The effect of epidural morphine sponge in postoperative pain control after Microdiscectomy. Archives of Advances in Biosciences. 3, 4 (Sep. 2012). DOI:https://doi.org/10.22037/jps.v3i4.3503.