RT Journal Article SR Electronic T1 Is It the Blood Background? JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 650 OP 651 VO 12 IS 9 A1 Ramesh Chandra A1 Joseph Hernberg A1 Philip Braunstein YR 1971 UL http://jnm.snmjournals.org/content/12/9/650.abstract AB