Role of buprenorphine in prolonging the duration of post-operative analgesia in percutaneous nephrolithotomy: Comparison between bupivacaine versus bupivacaine and buprenorphine combination
Nirmala Jonnavithula, Kumar Anil, Devraj Rahul, Vidyasagar Sriramoju, Ramachandraiah Gunta, Murthy Pisapati V. L. N.
