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1. Nagai, Y., Shimazu, R., Ogata, H., et al. Blood 2002; 99: 1699.
2. Nagai, Y., Akashi, S., Nagafuku, et al. Nat. Immunol. 2002; 3: 667.
3. Nagai, Y., Kobayashi, T., Motoi, Y., et al. J. Immunol. 2005; 174: 7043.
4. Kobayashi, T., Takahashi, K., Nagai Y., et al. Int. Immunol. 2008; 20: 881.

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