| 题名 | Effects of CD28 costimulation on long-term proliferation of CD4+ T cells in the absence of exogenous feeder cells |
| 作者 | Levine BL, Bernstein WB |
| 杂志 | J Immunol. |
| 年|卷|期 | 1997 Dec 15;159(12): |
| 页码 | 5921-30 |
| 链接 | http://www.jimmunol.org/content/159/12/5921.long |
谢谢
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