A Comparative Study Of Ultrasound Guided Pericapsular Nerve Group [Peng] Block Versus Suprainguinal Fascia Iliaca Compartment [Sifi] Block Using Ropivacaine In Patients With Fracture Femur For Reducing Pain Associated With Positioning For Subarachnoid Blo. Int. J. Environ. Sci. [Internet]. 2025 Sep. 29 [cited 2025 Oct. 16];:2484-9. Available from: https://theaspd.com/index.php/ijes/article/view/10572