2Wolf AM,Wolf D,Steurer M,et al. Increase of regulation T cells in the peripheral blood of cancer patients[J]. Clin Cancer Res, 2003,9 (4) : 606-612.
3Sasada T,Kimura M,Yoshida Y,et al. CD4+ CD25+ regu- latory T cells in patients with gastrointestinal maligan- cies:Possible involvement of regulatory T cells in disease progression [J]. cancer, 2003,98(1) : 1089-1099.
4lchikawa Y, Shimizu H, Takthashi k, et al. Lymphocyte subsets of the peripheral blood in Sjogren s syndrome andrheumatoid arthritis[J]. Clin Exp Rheumatol, 1989,7 (1) : 55-61.
