[1] Eramus Med Ctr, Vakgrp Celbiol Genet, NL-3000 DR Rotterdam, Netherlands
[2] Univ Pittsburgh, Inst Canc, Hillman Canc Ctr, Pittsburgh, PA 15213 USA
[3] Univ Helsinki, Inst Biotechnol, FIN-00014 Helsinki, Finland
[4] Erasmus MC, NL-3015 GE Rotterdam, Netherlands
[5] RIVM, NL-3721 MA Bilthoven, Netherlands