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Ahn, K.; Shelton, C. C.; Tian, Y.; Zhang, X.; Gilchrist, M. L.; Sisodia, S. S.; Li, Y. M. Proceedings of the National Academy of Sciences of the United States of America (2010)
Shelton, C. C.; Zhu, L.; Chau, D.; Yang, L.; Wang, R.; Djaballah, H.; Zheng, H.; Li, Y. M. Proceedings of the National Academy of Sciences of the United States of America (2009)