MuhammadAli,MuhammadShafiq,MuhammadNabeel,MashailZahra,SehrishRiaz, Muhammad.A. S. N. Z. R. 2018. Comparison of Two Different Doses of Hyperbaric Bupivacaine (0.75%) in Attaining the Highest Sensory Level in Supine Versus Prone Position After Spinal Anaesthesia for Percutaneous Nephrolithotomy. Journal of Rawalpindi Medical College. 22, 4 (Dec. 2018).