Differential reasoning and chain-of-thought processes in Deepseek-R1 and Open AI o3-mini-high for determining American Society of Anesthesiologists physical status. - Ke YH; Leong YH; Jin L; Elangovan K; Abdullah HR; Sia ATH; Ong JCL; Shah NH; Wong TY; Wei Ting DS (British journal of anaesthesia, 2025)