The overall objective of the current project is to provide the best possible estimate of thyroid
cancer risk following exposure to iodine isotopes and compare it to the risk following external
photon radiation, so that all major lessons can be learned from Chernobyl about risk of thyroid
cancer following radioiodine exposures .
To fulfill this objective, the following operational aims must be achieved :
1) Characterisation and modelling of dosimetric uncertainties for subjects in IARC-led casecontrol
study ;
2) Assessment of thyroid cancer risk from iodine isotopes within the IARC coordinated thyroid
cancer case-control study taking into account the uncertainties in dosimetry .