Comparison of the analgesic efficacy of ultrasound-guided superficial serratus anterior plane block and intercostal nerve block for rib fractures: a randomized controlled trial. - Zengin, Musa; Küçük, Onur; Aslan, Muhyettin; Fındık, Göktürk; Alagöz, Ali (BMC Anesthesiology, 2025)