Patel, A.S. and Patel, A.V. 2022. Comparative Analysis of Efficacy and Haemodynamic Response between Intrathecal Hyperbaric 0.5% Bupivacaine with Isobaric 0.75% Ropivacaine Utilizing Fentanyl as Adjuvant in Subjects Undergoing Umbilical Surgeries. Academia Anesthesiologica International. 7, 1 (Jun. 2022), 8-10.