[1] Karolinska Inst, Dept Mol Med, Clin Genet Unit, S-17176 Stockholm, Sweden
[2] Univ Helsinki, Dept Med Genet, Haartman Inst, FIN-00290 Helsinki, Finland
[3] Umea Univ Hosp, Dept Clin Genet, S-90185 Umea, Sweden
[4] Umea Univ Hosp, Dept Oncol, S-90185 Umea, Sweden
[5] Ohio State Univ, Ctr Comprehens Canc, Columbus, OH 43210 USA