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Introduces EHRNote-ChatQA, a benchmark for evidence-grounded multi-turn clinical question answering over multiple discharge summaries, constructed with expert validation. Benchmarking 22 LLMs reveals challenges in evidence grounding and multi-turn error accumulation.
A 9-week pilot at a Dutch academic hospital shows 58% of admissions used LLM-generated discharge drafts, with 87% of clinicians reporting reduced documentation time and 91% intending continued use.