Improved stem cell therapy of spinal cord injury using GDNF-overexpressed bone marrow stem cells in a rat model. - Shahrezaie M; Mansour RN; Nazari B; Hassannia H; Hosseini F; Mahboudi H; Eftekhary M; Kehtari M; Veshkini A; Ahmadi Vasmehjani A; Enderami SE (Biologicals : journal of the International Association of Biological Standardization, 2017)