Singh, A. K., Gupta, M., & S., P. H. (2017). Intraoperative haemodynamic profile in patients undergoing lower limb and abdominal surgery under subarachnoid block using 0.5% hyperbaric levobupivacaine: an observational study. International Journal of Research in Medical Sciences, 5(11), 4859–4863. https://doi.org/10.18203/2320-6012.ijrms20174933