@inproceedings{zhang-2008-hierarchical,
    title = "A Hierarchical Approach to Encoding Medical Concepts for Clinical Notes",
    author = "Zhang, Yitao",
    editor = "Arisoy, Ebru  and
      Inoue, Keisuke  and
      Maier, Wolfgang",
    booktitle = "Proceedings of the {ACL}-08: {HLT} Student Research Workshop",
    month = jun,
    year = "2008",
    address = "Columbus, Ohio",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-emnlp/P08-3012/",
    pages = "67--72"
}