Baig Mirza Wajeed, Manmohan Jindal, Neelima Tandon, Namrata Jain, Mahesh Kumar Vishwakarma. A comparative study to assess the effects of intrathecal fentanyl and intrathecal tramadol combined with 0.5% bupivacaine heavy in patients undergoing elective urological surgeries: A prospective randomized study. Asian J Med Sci [Internet]. 2024 Aug. 3 [cited 2024 Aug. 11];15(8):13-20. Available from: https://nepjol.info/index.php/AJMS/article/view/66316