%0 Letter %T Minimum effective dose of plain bupivacaine 0.5% for ultrasound-guided spinal anaesthesia using Taylor's approach. %A Liu Y %A Yang S %A Yao W %A Zhang S %A Wang S %A Li J %A Mei W %J Br J Anaesth %V 124 %N 6 %D 06 2020 %M 32252980 %F 11.719 %R 10.1016/j.bja.2020.03.008 %X