Large language models for structuring knee ultrasound reports-A comparative evaluation of DeepSeek R1, gemini 2.5 flash, and GPT-4o. - Min Tang; Le Xu; Libiao Zhu; Abasi Maimaitiabula; Xianzuo Zhang; Chong Pei; Lei Hu (BMC Medical Informatics Decis. Mak., 2026)