Huifang Sun, Yanqing Wang, Meenalakshmi Chinnam, Xiaojing Zhang, Simon W. Hayward, Barbara A. Foster, Alexander Y. Nikitin, Marcia Wills, David W. Goodrich
Proc Natl Acad Sci U S A. 2011 Jan 11; 108(2): 704–709. Published online 2010 Dec 27. doi: 10.1073/pnas.1015027108