RT Journal Article SR Electronic T1 Unacceptable Denials JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 939 OP 939 VO 61 IS 7 A1 Johannes Czernin A1 Martin Allen-Auerbach YR 2020 UL http://jnm.snmjournals.org/content/61/7/939.abstract AB