D. M. U. Zahoor, S. Khan, A. Y. Zaid, and K. Buland, “EFFECT OF PRE OPERATIVE HEART RATE ON POST SPINAL HYPOTENSION IN OBSTETRIC PATIENTS: Pre-Operative Heart Rate and Post Spinal Hypotension”, Pak Armed Forces Med J, vol. 60, no. 2, pp. 237–40, Jun. 2010, Accessed: Oct. 17, 2025. [Online]. Available: https://www.pafmj.org/PAFMJ/article/view/655