Zahoor, Dr Muhammad Umar, Shahram Khan, Ameer Yasser Zaid, and Khalid Buland. 2010. “EFFECT OF PRE OPERATIVE HEART RATE ON POST SPINAL HYPOTENSION IN OBSTETRIC PATIENTS: Pre-Operative Heart Rate and Post Spinal Hypotension”. Pakistan Armed Forces Medical Journal 60 (2): 237-40. https://pafmj.org/PAFMJ/article/view/655.