@inproceedings{li2010securing,
  title={Securing personal health records in cloud computing: Patient-centric and fine-grained data access control in multi-owner settings},
  author={Li, Ming and Yu, Shucheng and Ren, Kui and Lou, Wenjing},
  booktitle={International conference on security and privacy in communication systems},
  pages={89--106},
  year={2010},
  organization={Springer}
}