BioCause annotates causal relations in 19 open-access biomedical research articles, providing fine-grained span-level annotations for cause and effect event mentions.
@article{mihaila:2013,title={{{BioCause}}: {{Annotating}} and Analysing Causality in the Biomedical Domain},shorttitle={{{BioCause}}},author={Mihaila, Claudiu and Ohta, Tomoko and Pyysalo, Sampo and Ananiadou, Sophia},year=2013,journal={BMC Bioinform.},volume={14},pages={2},doi={10.1186/1471-2105-14-2}}