El-Saghire, Houssein 1,2; Vandevoorde Charlot 2; Thierens, Hubert 2; Michaux Arlette 1; Oestreicher, Ursula 3; Roessler, Ute 3; Kulka, Ulrike 3; Gomolka, Maria 3; Lindholm, Carita 4; Haghdoost, Siamak 5; Fernet Marie 6; Hall, Janet 6; Pernot, Elieen 7; Kesminiene, Ausrele 8; Baatout, Sarah 1 1 Belgian Nuclear Research Centre, SCK•CEN, BELGIUM; 2Ghent University, BELGIUM; 3Federal Office for Radiation Protection, BfS, GERMANY; 4Radiation and Nuclear Safety Authority, STUK, FINLAND; 5Centre for Radiation Protection Research, Stockholm University, SWEDEN; 6Institur Curie, FRANCE; 7Centre for Research in Environmental Epidemiology, CREAL, SPAIN; 8International Agency on Research against Cancer, FRANCE