PT - JOURNAL ARTICLE AU - Heinrich R. Schelbert TI - Comments and Perspectives DP - 2004 Aug 01 TA - Journal of Nuclear Medicine PG - 1273--1273 VI - 45 IP - 8 4099 - http://jnm.snmjournals.org/content/45/8/1273.short 4100 - http://jnm.snmjournals.org/content/45/8/1273.full SO - J Nucl Med2004 Aug 01; 45