PT - JOURNAL ARTICLE ED - , TI - Self-Study Test DP - 1991 Apr 01 TA - Journal of Nuclear Medicine PG - 685--728 VI - 32 IP - 4 4099 - http://jnm.snmjournals.org/content/32/4/685.short 4100 - http://jnm.snmjournals.org/content/32/4/685.full SO - J Nucl Med1991 Apr 01; 32