PT - JOURNAL ARTICLE ED - Society of Nuclear Medicine TI - Calendar DP - 1974 Sep 01 TA - Journal of Nuclear Medicine PG - 828--830 VI - 15 IP - 9 4099 - http://jnm.snmjournals.org/content/15/9/828.short 4100 - http://jnm.snmjournals.org/content/15/9/828.full SO - J Nucl Med1974 Sep 01; 15