@ARTICLE{6171175, author={Li, Ming and Yu, Shucheng and Zheng, Yao and Ren, Kui and Lou, Wenjing}, journal={IEEE Transactions on Parallel and Distributed Systems}, title={Scalable and Secure Sharing of Personal Health Records in Cloud Computing Using Attribute-Based Encryption}, year={2013}, volume={24}, number={1}, pages={131-143}, doi={10.1109/TPDS.2012.97}}