title: Preservation of the rearrangement of the breakpoint cluster region (bcr) following the negative conversion of Philadelphia chromosome (Ph1) in relapse of Ph1-positive acute lymphocytic leukemia.
mesh_terms: D002871:Chromosome Banding; D006801:Humans; D007945:Leukemia, Lymphoid / Q000188:drug therapy / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D010677:Philadelphia Chromosome