Update README

README.md

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 # LLM Stigma Data
-This dataset contains the data for the paper "Large Language Models Generate Stigmatizing Language During Reasoning Over Real-World Clinical Data". It contains the system prompt, user input, true labels, and LLM outputs of the main and the destigmatizing experiment. The data is packed on the model level. Each tar.gz file contains 13 JSON files.
+This dataset contains the data for the paper "[Large Language Models Generate Stigmatizing Language During Reasoning Over Real-World Clinical Data](https://www.medrxiv.org/content/10.64898/2026.08.12.26360210v1)". It contains the system prompt, user input, true labels, and LLM outputs of the main and the destigmatizing experiment. The data is packed on the model level. Each tar.gz file contains 13 JSON files.
 
 **Note: Only the tasks that are allowed to be open-sourced (N = 13) are included. For the rest of tasks (N = 22), please contact the authors for access.**