[1] Leiden University Medical Centre,Leon Mullenders is at the Department of Toxicogenetics
[2] 2300RC Leiden,Department of Radiation Oncology
[3] The Netherlands.,Laure Sabatier is at the Life Sciences Division
[4] Mike Atkinson is at the Institute of Radiation Biology,Simon Bouffler is at the Radiation Protection Division
[5] Helmholtz Centre Munich,undefined
[6] Munich D-85764,undefined
[7] Germany,undefined
[8] and Radiation Biology,undefined
[9] Klinikum Rechts der Isar,undefined
[10] Technical University of Munich,undefined
[11] Munich,undefined
[12] Germany.,undefined
[13] Herwig Paretzke is at the Institute of Radiation Protection,undefined
[14] Helmholtz Centre Munich,undefined
[15] Munich D-85764,undefined
[16] Germany.,undefined
[17] Atomic Research Centre,undefined
[18] Health Protection Agency,undefined