Vikas Aron, Kapil Lamba. A Comparative Analysis of Ropivacaine- Fentanyl vs Bupivacaine-Fentanyl in Labour Analgesia. AAN [Internet]. 2019Dec.14 [cited 2026Apr.28];4(2):234-6. Available from: https://www.aijournals.com/index.php/aan/article/view/1131