Comparative study of remifentanil versus fentanyl for intra-operative analgesia during general anaesthesia. A retrospective comparative study at Bmims Pawapuri. SJHR-Africa [Internet]. 2025 Dec. 30 [cited 2026 Aug. 13];6(12):7. Available from: https://sjhrafrica.org.sjhresearchafrica.org/index.php/public-html/article/view/2365