RT Journal Article SR Electronic T1 Absorbed Fractions for Electrons and Beta Particles in Spheres of Various Sizes JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 152 OP 156 VO 35 IS 1 A1 Jeffry A. Siegel A1 M. G. Stabin YR 1994 UL http://jnm.snmjournals.org/content/35/1/152.abstract AB