Cross-species transplantation tolerance: rat bone marrow-derived cells can contribute to the ligand for negative selection of mouse T cell receptor Vb in chimeras tolerant to xenogeneic antigens (mouse + rat → mouse) - Ildstad,S.T.; Vacchio,M.S.; Markus,P.M.; Hronakes,M.L.; Wren,S.M.; Hodes,R.J. (J Exper Med, 1992)