The spleen plays an immunosuppressive role in patients with gastric cancer: involvement of CD62L+ cells and TGF-beta.Kosuke Noma, Tetsuya Toge, Riki Okita et al.|PubMed|2005Cited by 13
Enhancement of lymphokine-activated killer cell induction using anti-CD25 and anti-CTLA-4 monoclonal antibodiesRiki Okita, Tetsuya Toge, Yoshiyuki Yamaguchi et al.|Oncology Reports|2007Cited by 3