title: Chromosome break points in clonal and nonclonal chromosome changes in human chronic lymphocytic leukemia.
mesh_terms: D000368:Aged; D002869:Chromosome Aberrations; D002999:Clone Cells / Q000648:ultrastructure; D005260:Female; D006801:Humans; D007945:Leukemia, Lymphoid / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D014178:Translocation, Genetic