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Zhen Shao, Yijing Zhang, Guo-Cheng Yuan, Stuart H Orkin* and David J Waxman*
* Corresponding authors: Stuart H Orkin orkin@bloodgroup.tch.harvard.edu - David J Waxman djw@bu.edu
Genome Biology 2012, 13:R16 doi:10.1186/gb-2012-13-3-r16