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Large language models used for medical question answering generate hallucinated clinical information.
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SUPPORTED
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7 sources for · 0 against
Is it true that large language models used for medical question answering generate hallucinated clinical information?
Yes. A study measuring hallucination behaviour of LLMs on medical textbook QA directly documents hallucinated clinical information, and several other peer-reviewed studies report inaccurate or unreliable LLM output in medical question answering and education.
Verdict: SUPPORTED · 7 sources for, 0 against · Last checked
Evidence for · 7
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Causality Extraction from Medical Text Using Large Language Models (LLMs). (2024). doi.org. https://doi.org/10.3390/info16010013
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More for · 6
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Mohammed, B. E. A., Mohammed, T. E. A., & Breitbach, A. P. (2026). The Effects of Large Language Models on the Generation of Multiple-choice Questions in Medical Education: A Scoping Review. doi.org. https://doi.org/10.18502/sjms.v21i2.19868
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Cross-Lingual Empirical Evaluation of Large Language Models for Arabic Medical Tasks. (2026). doi.org. https://doi.org/10.18653/v1/2026.healing-1.13
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Lee, H., Kim, S. J., & Lee, S. (2026). Multi-Agent Cross-Review of Large Language Models for Medical Question Answering Under Noisy Clinical Text: Development and Evaluation Study (Preprint). doi.org. https://doi.org/10.2196/preprints.104714
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Erkan, D. D. & Alikaşifoğlu, M. (2026). Addressing Patient Questions on Spinal Muscular Atrophy: Performance of Large Language Models in a Genetic Context. doi.org. https://doi.org/10.12996/gmj.2026.4626
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Quantifying Hallucinations in Language Language Models on Medical Textbooks - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://pmc.ncbi.nlm.nih.gov/articles/PMC13119327/
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M, R., T, X., & W, H. (2026). Evaluating GPT-4 Responses on Scars or Keloids for Patient Education: Large Language Model Evaluation Study.. doi.org. https://doi.org/10.2196/78838
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