passages.id: split_6_test_2576_passage
passages.type: progene_text
passages.text: CBA ( H2 (k) ) mice were pretreated with CBK ( H2 (k)+K(b) ) bone marrow cells under the cover of anti - CD4 antibody 28 days before transplantation of a CBK or a C57BL/10 ( H2 (b) ) cardiac allograft .