TY - JOUR T1 - Magnetic resonance imaging findings of disc-related epidural cysts in nonsurgical and postoperative microdiscectomy patients JO - Radiologia Brasileira A1 - Simão, Marcelo Novelino A1 - Helms, Clyde A. A1 - Richardson, William J. SN - 0100-3984 UL - 10.1590/S0100-39842012000400005 VL - 45 Y1 - 2012 PB - Brasil ER -