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S.M.J. Mortazavi, P.A. Karamb: Apparent lack of radiation susceptibility among residents of the high background radiation area in Ramsar, Iran: can we relax our standards? In: Radioactivity in the Environment. 7. Jahrgang, 2005, ISSN1569-4860, S.1141–1147, doi:10.1016/S1569-4860(04)07140-2.