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http://www.nature.com/srep/2013/ ... full/srep01751.html

http://pubs.acs.org/doi/abs/10.1021/ja312225b

http://onlinelibrary.wiley.com/d ... .201300183/abstract

http://onlinelibrary.wiley.com/d ... .201201469/abstract

http://onlinelibrary.wiley.com/d ... .201101663/abstract

http://dx.doi.org/10.1016/j.biomaterials.2012.04.002

http://dx.doi.org/10.1016/j.biomaterials.2012.06.028

http://dx.doi.org/10.1016/j.biomaterials.2012.06.035

http://dx.doi.org/10.1016/j.biomaterials.2011.10.039

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