[1] Munich Leukemia Lab, D-81377 Munich, Germany
[2] Univ Dusseldorf, Inst Humangenet & Anthropol, Dusseldorf, Germany
[3] Queen Mary Coll, Canc Res UK, Med Oncol Lab, Barts & Royal London Sch Med & Dent, London, England
[4] Hop Purpan, Hematol Lab, Toulouse, France
[5] Katholieke Univ Leuven, Ctr Human Genet, Louvain, Belgium
[6] Univ Giessen, Childrens Hosp, Dept Pediat Hematol & Oncol, Giessen, Germany
[7] Univ Ulm, Dept Internal Med 3, D-7900 Ulm, Germany
[8] Univ Helsinki, Haartman Inst, Dept Pathol, Helsinki, Finland
[9] Univ Lund Hosp, Dept Clin Genet, S-22185 Lund, Sweden
[10] Med Univ Vienna, Dept Humangenet, Clin Inst Med & Chem Lab Diagnost, Vienna, Austria