Yesudhas, D. A.; B, D. S.; Krishnan, D. U. A. A Comparative Study on The Efficacy of Low Dose 0.5% Bupivacaine and Fentanyl Versus Conventional Dose of Hyperbaric Bupivacaine Alone For Lower Segment Caesarean Section. Adolescência e Saúde 2026, 21, 1023-1031.