K. Harini, Vaishalee Ketan Badhe, Manisha Phulbone, Vaijayanti Badhe, and Ketan Badhe. 2025. “Study Of The Efficacy, After Giving Equal Bolus Dose Of 8ml Of Ropivacaine 0.1% Vs Ropivacaine 0.2% With Fentanyl For Post-Operative Patient-Controlled Epidural Analgesia In Patients Undergoing Infra- Umbilical Abdominal Surgery And Lower Limb Orthopedic”. International Journal of Pharmacy Research & Technology (IJPRT) 15 (1):71-83. https://ijprt.org/index.php/pub/article/view/313.