PT - JOURNAL ARTICLE ED - Society of Nuclear Medicine TI - NRC Final Rule on Expanded Definition of Byproduct Material DP - 2007 Jun 01 TA - Journal of Nuclear Medicine PG - 15N--15N VI - 48 IP - 6 4099 - http://jnm.snmjournals.org/content/48/6/15N.short 4100 - http://jnm.snmjournals.org/content/48/6/15N.full SO - J Nucl Med2007 Jun 01; 48