Sarah Nadia Jamal, Rahma lodi, Sarah Ahmed, et al. COMPARISON OF THE EFFICACY OF CRYSTALLOID PRELOADING AND CO-LOADING FOR PREVENTION OF SPINAL-INDUCED HYPOTENSION IN PATIENTS UNDERGOING ELECTIVE LOWER LIMB SURGERIES AT TERTIARY CARE HOSPITAL, KARACHI. J Popl Ther Clin Pharmacol. 2026;32(11):96-102. doi:10.53555/61zj2040