title: The impairment of graft-versus-host reaction by immunisation of F1 hybrids with low doses of parental cells.
mesh_terms: D000818:Animals; D000941:Antigens / Q000008:administration & dosage*; D003433:Crosses, Genetic; D006087:Graft vs Host Reaction; D007114:Immunization; D007115:Immunization Schedule; D008198:Lymph Nodes / Q000166:cytology; D008214:Lymphocytes / Q000276:immunology*; D051381:Rats; D013154:Spleen / Q000166:cytology
chemical_list: D000941:Antigens