RT Journal Article SR Electronic T1 Introduction JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1S OP 2S DO 10.2967/jnumed.111.097071 VO 52 IS Supplement 2 A1 Johannes Czernin A1 Wolfgang A. Weber YR 2011 UL http://jnm.snmjournals.org/content/52/Supplement_2/1S.abstract AB