“A Comparison of Using Crystalloid Preloading and Co-Loading in Caesarean Section Operation Under Spinal Anaesthesia and Its Association with Spinal Anaesthesia Induced Hypotension and Heart Rate Variability” (2021) Journal of Dhaka Medical College, 29(1), pp. 12–17. doi:10.3329/jdmc.v29i1.51164.