PT - JOURNAL ARTICLE AU - Henry N. Wagner, Jr TI - Comments and Perspectives DP - 2005 Jan 01 TA - Journal of Nuclear Medicine PG - 1--1 VI - 46 IP - 1 4099 - http://jnm.snmjournals.org/content/46/1/1.short 4100 - http://jnm.snmjournals.org/content/46/1/1.full SO - J Nucl Med2005 Jan 01; 46