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. 2006 Aug 25;5(1):63–75. doi: 10.2203/dose-response.06-105.Chen

FIGURE 2.

FIGURE 2

Idealized, complete dose-response curve. The ordinate indicates approximate responses compared with the controls. The abscissa suggests mammalian whole-body exposures as mGy/y. The numbered areas are: (1) deficient, (2) ambient, (3) hormetic, (4) optimum, (5) zero equivalent point, and (6) harmful.