@inproceedings{elmofty-leser-2026-retrieval,
    title = "When Does Retrieval Beat Direct {LLM} Diagnosis in Rare Disease? An Empirical Study of Ontology Coverage",
    author = "Elmofty, Mohamed  and
      Leser, Ulf",
    editor = "Demner-Fushman, Dina  and
      Ananiadou, Sophia  and
      Roberts, Kirk  and
      Tsujii, Junichi",
    booktitle = "{B}io{NLP} 2026",
    month = jul,
    year = "2026",
    address = "San Diego, California",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-acl-workshops/2026.bionlp-1.41/",
    pages = "508--518",
    ISBN = "979-8-89176-434-7"
}