Muhammad Ali, Muhammad Shafiq, Aleena Hassan, Muhammad Ali, Muhammad Shafiq, Aleena Hassan. 2017. “Haemodynamics During Percutaneous Nephrolithotomy in Spinal Anaesthesia With Two Doses of Hyperbaric Bupivacaine (0.75%)”. Journal of Rawalpindi Medical College 21 (3). https://journalrmc.com/index.php/JRMC/article/view/31.