Singh, A.K., Gupta, M. and 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 (Oct. 2017), 4859–4863. DOI:https://doi.org/10.18203/2320-6012.ijrms20174933.