“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”. International Journal of Environmental Sciences, Sept. 2025, pp. 2484-9, https://doi.org/10.64252/1rgtra04.