PT - JOURNAL ARTICLE ED - , TI - Calendar DP - 1976 Jun 01 TA - Journal of Nuclear Medicine PG - 574--576 VI - 17 IP - 6 4099 - http://jnm.snmjournals.org/content/17/6/574.short 4100 - http://jnm.snmjournals.org/content/17/6/574.full SO - J Nucl Med1976 Jun 01; 17