PT - JOURNAL ARTICLE ED - , TI - Calendar DP - 1976 Feb 01 TA - Journal of Nuclear Medicine PG - 160--162 VI - 17 IP - 2 4099 - http://jnm.snmjournals.org/content/17/2/160.short 4100 - http://jnm.snmjournals.org/content/17/2/160.full SO - J Nucl Med1976 Feb 01; 17