PT - JOURNAL ARTICLE ED - , TI - New Studies Cite Medical Radiation Exposure DP - 2009 May 01 TA - Journal of Nuclear Medicine PG - 18N--18N VI - 50 IP - 5 4099 - http://jnm.snmjournals.org/content/50/5/18N.short 4100 - http://jnm.snmjournals.org/content/50/5/18N.full SO - J Nucl Med2009 May 01; 50