Comparing the Effect of Adding Ketamine and Neostigmine to Bupivacaine 0.25 % for Epidural Analgesia among Patients Candidated for Elective Femoral Fracture Surgery Journal title: International Journal of Medical Research & Health Sciences (IJMRHS) Authors: Alireza Kamali| Department of Anesthesiology, Arak University of Medical sciences, Arak, Iran, Abbas... Subject(s): Medicine, Biomedicine, Dentistry and Oral Surgery, Oncology, Public Health and Community Medicine