[1] BioApplicat Enterprises, Winnipeg, MB R2V 2N6, Canada
[2] Univ Manitoba, Manitoba Inst Cell Biol, Canc Care Manitoba, Winnipeg, MB, Canada
[3] Univ Manitoba, Manitoba Inst Child Hlth, Winnipeg, MB, Canada
[4] Univ Manitoba, Dept Biochem & Med Genet, Winnipeg, MB, Canada
[5] Univ Manitoba, Dept Human Anat & Cell Sci, Winnipeg, MB, Canada
[6] Maria Sklodowska Curie Mem Inst Oncol, Dept Expt & Clin Radiobiol, Ctr Oncol, Gliwice, Poland
[7] Univ Aarhus, Dept Human Genet, Aarhus, Denmark