TY - JOUR T1 - Comments and Perspectives JF - Journal of Nuclear Medicine JO - J Nucl Med SP - 1793 LP - 1793 VL - 45 IS - 11 AU - James K. O’Donnell Y1 - 2004/11/01 UR - http://jnm.snmjournals.org/content/45/11/1793.abstract N2 - ER -