Comparison of traditional systemic analgesic, single shot or continuous fascia iliaca compartment block for pain management in patients with hip or proximal femoral fractures: A protocol for systematic review and network meta-analysis - Jia-Xi Tang; Ling Wang; Shaojin Bu; Wallisa Roberts; Narcis Ungureanu; Ansar Mahmood; Fang Gao; Raja V Lakshmanan; Tonny Veenith; Rajneesh Sachdeva (PLoS ONE, 2025)