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, [S. l.], p. 2484–2489, 2025. DOI: 10.64252/1rgtra04. Disponível em: https://theaspd.com/index.php/ijes/article/view/10572.. Acesso em: 16 oct. 2025.