1. Naturally arising Foxp3-expressing CD25+CD4+ regulatory T cells in immunological tolerance to self and non-self;Sakaguchi,2005
2. A CD4+ T-cell subset inhibits antigen-specific T-cell responses and prevents colitis;Groux,1997
3. B-lymphocytes;LeBien,2008
4. B-cell suppression of delayed hypersensitivity reactions;Katz,1974
5. Specific suppression of delayed hypersensitivity;Neta,1974