Marwoto M, Raharjo SP. Onset response of bupivacaine 0.5% which has been added with sodium bicarbonate on epidural block. Med J Indones [Internet]. 2005 Feb. 1 [cited 2025 May 9];14(1):7-10. Available from: http://mji.ui.ac.id/journal/index.php/mji/article/view/167