11，Sun J, Sheil AG, Wang C, et al. Tolerance to rat liver allografts: Ⅳ. Acceptance deponds on the quantity of donor tissue and on donor leukocytes[J]. Transplantation, 1996; 62(12)∶1725
22，Shirwan H, Wu GD, Barwari, et al. Induction of allograft nonresponsiveness after intrathymic inoculation with donor class Ⅰ allopeptides. Ⅱ. Eveidence for persistent chronic rejection despite high levels of donor microchimerism[J]. Transplantation, 1997; 64(12)∶1671
33，Wang T, Nouri-Aria KT, Delin J, et al. Tolerance and latent cullular rejection in long-term liver transplant recipients[J]. Hepatology, 1998; 28(2)∶443
44，de Haan A, van den Berg AP, Hekema BG, et al. Donor specific hyporeactivity after liver transplantation: prominent decreases in donor-specific cytoxic T lymphocyte precursor frequencies independent of changes in helper T lymphocyte precursor frequencies or suppressor cell activity [J]. Transplantation, 1998; 66(4)∶516
55，Qian S, Lu L, Fu F, et al. Apoptosis within spontaneously accepted mouse liver allografts evidence for deletion of cytotoxic T cells and implications for tolerance induction[J]. J Immunol, 1997; 158(10)∶4654
66，Miller RG. The veto phenomenon and T cell regulation[J]. Immunology Today, 1986; 7(1)∶112
77，Qian SG, Lu L, Fu F, et al. Donor pretreatment with Flt-3 ligand augments antidonor cytotoxic T lymphocyte, natural killer, and lymphoine-activated killer cell activities within liver allografts and alters the pattern of intragraft apoptic activity[J]. Transplantation, 1998; 65(12)∶1590
88，Burgio VL, Ballardini G, Artini M, et al. Expression of costimulatory molecules by kupffer cells in chronic haptitis of hepatitis C virus etiology[J]. Hepatology, 1998; 27(6)∶1600
