[1] Uppsala Univ Hosp, Dept Pediat Oncol, UPPSALA, Sweden
[2] Karolinska Inst, Uppsala Univ Hosp, Bioinformat, Stockholm, Sweden
[3] Uppsala Univ Hosp, Dept Pediat Oncol, UPPSALA, Sweden
[4] Karolinska Inst, Dept Microbiol Tumor & Cell Biol, Stockholm, Sweden
[5] Karolinska Univ Hosp, Dept Clin Microbiol, SE-17176 Stockholm, Sweden
[6] Karolinska Inst, Dept Cell & Mol Biol, Stockholm, Sweden
[7] Uppsala Univ Hosp, DEPT PEDIAT, UPPSALA, Sweden