Comparative Effectiveness of Combined Lumbar– Para Sacral Nerve Block and Spinal Anaesthesia on the Pain Intensity and Duration of Anaesthesia in Patients with Tibial Fracture - Mokarram Dori, Mehrdad; Dehghan Tafti, Fateme; Bameshki, Alireza; Ziaee, Maliheh (Archives of Anesthesiology and Critical Care, 2023)