Riaz, A., Khan, R. A. S., Salim, F., Saeed, M., & Khan, R. A. (2015). COMPARISON OF ROPIVACAINE AND BUPIVACAINE AS SINGLE-SHOT EPIDURAL ANAESTHESIA FOR ORTHOPAEDIC SURGERY: Single-Shot Epidural Anaesthesia. Pakistan Armed Forces Medical Journal, 65(5), 644-648. https://pafmj.org/PAFMJ/article/view/1086