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Excess relative risk (ERR) for breast tissue vs dose (conventional fractionation regimens). Parameters: λ = 0.4 (1/day), r = 0.76, γ = 10−6 (1/Gy), N = 106, α = 0.18 (1/Gy). IIP, initiation–inactivation–proliferation. Reproduced from Sachs and Brenner18 copyright (2005) National Academy of Sciences, USA.
