PT - JOURNAL ARTICLE ED - , TI - Calendar DP - 1974 Oct 01 TA - Journal of Nuclear Medicine PG - 920--922 VI - 15 IP - 10 4099 - http://jnm.snmjournals.org/content/15/10/920.short 4100 - http://jnm.snmjournals.org/content/15/10/920.full SO - J Nucl Med1974 Oct 01; 15