“Effectiveness of Perfusion Index for Predicting Onset of Paediatric Caudal Block under Sevoflurane Anaesthesia”. Journal of Bangladesh College of Physicians and Surgeons 43, no. 3 (July 29, 2025): 205–211. Accessed June 27, 2026. https://www.banglajol.info/index.php/JBCPS/article/view/83106.