RT Journal Article SR Electronic T1 Collaborations in the Development and Validation of Imaging Biomarkers JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 36N OP 37N VO 49 IS 6 A1 Daniel Sullivan YR 2008 UL http://jnm.snmjournals.org/content/49/6/36N.abstract AB