Fig. 1From: The prospective mathematical idea satisfying both radiation hormesis under low radiation doses and linear non-threshold theory under high radiation dosesGraph of inhibition effect R(x) due to the inhibitor factor. The radiation dose is defined as x. The radiation dose at which R(x) reaches a maximum is defined as x1. a Single point of inflection for x > x1. b One single point of inflection for 0 < x < x1 and another for x > x1Back to article page