PT - JOURNAL ARTICLE ED - , TI - Calendar DP - 1976 Aug 01 TA - Journal of Nuclear Medicine PG - 768--770 VI - 17 IP - 8 4099 - http://jnm.snmjournals.org/content/17/8/768.short 4100 - http://jnm.snmjournals.org/content/17/8/768.full SO - J Nucl Med1976 Aug 01; 17