Alim, M. A. ., Habibullah, A. ., Ghosh, R. K. ., Ghosh, R. ., Banik, D. ., & Akhtaruzzaman, A. . (2018). Effectiveness of plethysmographic variability index for prediction of subarachnoid block induced hypotension in caesarean section. Journal of the Bangladesh Society of Anaesthesiologists, 31(2), 62–66. https://doi.org/10.3329/jbsa.v31i2.66485