A Double–Blind Randomized Control Trial To Compare Postoperative Analgesia With Epidural Bupivacaine 0.25% And Ropivacaine 0.2% In Lumbar Spine Surgery - Current Issue

A Double–Blind Randomized Control Trial To Compare Postoperative Analgesia With Epidural Bupivacaine 0.25% And Ropivacaine 0.2% In Lumbar Spine Surgery - Current Issue - IJSR