【题名】:Age-dependent susceptibility to a viral disease due to decreased natural killer cell numbers and trafficking. 【作者】:Fang M, Roscoe F, Sigal LJ. 【杂志名全称】:J Exp Med. 【年, 卷(期), 起止页码】:2010 Sep 27. [Epub ahead of print] 【全文链接】:http://jem.rupress.org/content/207/11/2369.long