PT - JOURNAL ARTICLE AU - Paul E. Christian TI - Ensuring Standardization and Harmonization in Multicenter Clinical Trials DP - 2009 Jun 01 TA - Journal of Nuclear Medicine PG - 20N--20N VI - 50 IP - 6 4099 - http://jnm.snmjournals.org/content/50/6/20N.short 4100 - http://jnm.snmjournals.org/content/50/6/20N.full SO - J Nucl Med2009 Jun 01; 50