@article{article, title = {{The CLEF corpus: semantic annotation of clinical text.}}, url = {{}}, year = {{2007}}, month = {{1}}, author = {{Roberts A and Gaizauskas R and Hepple M and Davis N and Demetriou G and Guo Y and Kola J and Roberts I and Setzer A and Tapuria A and Wheeldin B}}, journal = {{AMIA Annu Symp Proc}}, pages = {{625-629}}, note = {{Accessed on 2024/12/23}}}