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AI Summary: Researchers at Microsoft developed CARE-X, a unified chest X-ray vision-language model (VLM) that combines generative and discriminative capabilities to support diverse clinical interpretation tasks. CARE-X uses reinforcement learning to optimize clinical correctness and provides both free-text reasoning and deterministic outputs. The model was validated on real-world Indian clinical data and aims to address gaps in current radiology VLMs, including the need for calibrated confidence scores and clinically aligned optimization. CARE-X is a research model, not a product offering, and its results do not establish safety or effectiveness for clinical use.