Akbar Ali, Khalil Ur Rehmam, Samir kabeer khan, Abdul satar, and Muhammad Zahid khan. 2024. “COMPARISON OF PAIN FREQUENCY IN PATIENTS UNDERGOING ELECTIVE SPINE SURGERY: VALSALVA MANEUVER VS. CONTROL GROUP DURING SPINAL ANESTHESIA”. Journal of Population Therapeutics and Clinical Pharmacology 31 (5): 524-28. https://doi.org/10.53555/jptcp.v31i5.6188.