Alim, M. A. ., Habibullah, A. ., Ghosh, R. K. ., Ghosh, R. ., Banik, D. . and 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), pp. 62–66. doi: 10.3329/jbsa.v31i2.66485.