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. Author manuscript; available in PMC: 2012 Apr 6.
Published in final edited form as: Radiat Res. 1997 Mar;147(3):342–348.

FIG. 4.

FIG. 4

Relative biological effectiveness at 37% survival as a function of α-particle energy emitted by internal emitters. (○) 3.2 MeV from 148Gd, (□) 5.3 MeV from 210Po (11), (△) 6.0 MeV from 212Bi (5), (◇) 8.8 MeVfrom212Po(5).