RT Journal Article SR Electronic T1 Nuclear Medicine Radiation Risks JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 489 OP 489 DO 10.2967/jnumed.108.058099 VO 50 IS 3 A1 Herbert A. Klein YR 2009 UL http://jnm.snmjournals.org/content/50/3/489.1.abstract AB