Vangapalli, N., Annepu, K. K., Priyadarshini, P. C., & Alugolu, M. (2022). Randomized controlled study comparing a isobaric levobupivacaine to a conventional dose of hyperbaric bupivacaine for infra umbilical surgeries. International Journal of Health Sciences, 6(S4), 2513–2524. https://doi.org/10.53730/ijhs.v6nS4.7603