@inproceedings{machcha-etal-2025-large, title = "Do Large Language Models Know When Not to Answer in Medical {QA}?", author = "Machcha, Sravanthi and Yerra, Sushrita and Sultana, Sharmin and Yu, Hong and Yao, Zonghai", editor = "Noidea, Noidea", booktitle = "Proceedings of the 2nd Workshop on Uncertainty-Aware NLP (UncertaiNLP 2025)", month = nov, year = "2025", address = "Suzhou, China", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/ingest-emnlp/2025.uncertainlp-main.4/", pages = "27--35", ISBN = "979-8-89176-349-4" }