RT Journal Article SR Electronic T1 Carbon-11-Putrescine: Back to the Drawing Board JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 200 OP 201 VO 33 IS 2 A1 Rottenberg, D. A. YR 1992 UL http://jnm.snmjournals.org/content/33/2/200.abstract AB